What Causes Pressure Build Up in Cooling System - Semi Truck Diagnostic & Troubleshooting

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Let's go through the diagnose and troubleshoot process for high pressure, no high temperature in engine cooling system and how to check if EGR cooler is bad.
#semitruck #mechanic #coolingsystem #egr
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5 окт 2024

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Комментарии : 113

@truckingandfixing 2 года назад

This video is brought to you by Motive, formly KeepTruckin. Motive provides a great package of solutions for fleet owner and owner operators. Check out Motive here ► bit.ly/3cOdgr9 Download TruckerPath - America’s most popular app for truck drivers. Millions of truckers all over the country use Trucker Path to find the closest truck stop, available parking, weigh station, fuel stops, trip planning and truck-safe routing. ► bit.ly/3ejPYtw

@BlindBatG34 2 года назад

“The only thing that costs more than a good mechanic is a bad mechanic.” Thanks for another great video Ryan.

@truckingandfixing 2 года назад

❤️

@alankinney-sg9fm 7 дней назад

Great job , explaining in simple terms . Always great videos

@void308 22 дня назад

Thank you very much for the video! Very informative. Hopefully it's my EGR cooler!

@truckingandfixing 22 дня назад

You are welcome!

@drewsshoplife 2 года назад

I've Never even considered Testing the boiling point of the soot to detect coolant. I work on pickup truck diesels and i usually pressure test the cooler or you can usually see the coolant crust in the cooler. Im going to get some coolant strips and try that next time. Another Great video Ryan , Thank you

@truckingandfixing 2 года назад

You are welcome! Good luck!

@fixmehanicar 2 года назад

This type of information and education is pure gold. Thankyou for sharing your trick and expirience. Every truck driver on a truck stop that i meet ill make shoure to start follow this chanel or stop by for repairs at your shop. Thankyou sir.

@truckingandfixing 2 года назад

Thank you 🙏!

@imarlonpp Год назад

Good video, good mechanic, good masterclass 10/10

@caronerichardson7734 2 года назад

👍🏿 I need you to be my personal mechanic. Hard to find a good honest mechanic

@jameshowe5051 2 года назад

Makes perfect sense. Thank you for sharing your knowledge.

@truckingandfixing 2 года назад

You are welcome!

@gregburgess6884 Год назад

Thank you Ryan for helping us to understand the mechanics

@truckingandfixing Год назад

You are welcome!

@amberreinke2924 Год назад

I might add injector cups failing also cause, coolant pressure build up. My personal experience is from Volvo D13 cups. Which in turn blows up the reservoir like a balloon. But great video my man, keep em coming.

@gavikpt1 Год назад

But was your reservoir tank throwing coolant out from the overflow side? Mine does that and not sure what’s going on

@magnovska3979 10 месяцев назад

Currently had this problem, i replaced the EGR cooler and it fixed it, some mechanics were telling me i needed an overhaul

@mattt3284 4 месяца назад

I finally found a shop, #4, that listened to me and did the test I requested after the other shops wouldn't, but just did the same tests the other shops did, all passing! The Peterbilt in Charlotte did the air compressor isolation test. That was it. Bad head. Replaced head, running great. No more issues! These so called techs at these shops will repeat tests to pad the bill it seems. They can also be arrogant and lazy.

@darwinmauri1433 2 года назад

What a great video Ryan. If I can understand what you are saying anybody can. Can EGR be eliminated instead?

@Moondoggy1970 2 года назад

Great video man & great content 😎👍🏽

@truckingandfixing 2 года назад

Thank you! 😀

@Moondoggy1970 2 года назад

😎👍🏽

@donavandixon6563 2 года назад

Always great content

@truckingandfixing 2 года назад

Thank you!

@HungryMonster320 Год назад

You sir are a genius! Thanks for all your knowledge!

@truckingandfixing Год назад

🙏

@Jerzeyguy Год назад

Good advice.

@truckingandfixing Год назад

Thanks for watching!

@mitcholson2607 8 месяцев назад

Thank you for this video. My Cummins is currently doing the exact same thing. I ordered coolant test strips and I am going to try it this weekend.

@davidrosenberg353 2 года назад

Ryan, good to see you again, you dropped off my computer not sure why but I'm back the shop wall looks good and you sounded good and good information thanks.

@munir654321 2 года назад

I try getting a hold of you for my truck repair

@truckingandfixing 2 года назад

I apologize if I didn’t get back to you in time. I have already booked out 6 weeks. Won’t be able to schedule you in at this moment, but we are planning to hire people to help. Should be able to take on more work.

@truckingandfixing 2 года назад

Make sure to email us, so we have your info.

@brentperkins83 Год назад

Really informative video. Thanks for posting it.

@powermuves4573 Год назад

You seem very knowledgeable I need help bad boss

@truckingandfixing Год назад

Please reach out to our business line to make an appointment

@haiderk3246 2 года назад

Thanks my God bliss 👏

@truckingandfixing 2 года назад

You are welcome!

@die2375 Год назад

Thanks!

@wolfmantrucker1541 2 года назад

Hey man love your videos especially you being a former landstar driver but I was wondering how often you got your overhead adjusted and how often you got your dpf filter changed , i been here with this truck about a year and I get my oil changed every 3 months but filling out my maintnance report made me think I should start thinking bout overheads a cleaning filters even tho it's been an awesome truck with hardly no problems but I thought I'd get on here and ask you

@truckingandfixing 2 года назад

Good question! I am planning to make a video about maintenance schedule. Should be able to answer your question there in details.

@wolfmantrucker1541 2 года назад

@@truckingandfixing that'd be great look forword to it

@makincash3337 Год назад

@@truckingandfixing Did you make the scheduled pm video?

@Plowguitarist Год назад

DPF filter cleaning recommendation for cummins is every 250,000 miles. However, if you idle a lot and don’t have an APU you will have to clean it closer to 200,000. Also your oil changes shouldn’t be on a 3 month interval but a specific milage interval. I change mine every 15,000 miles and use Rotella T5 semi synthetic 10w30. Hope this was helpful. I too am at Landstar, I have a Thermo King Tri-pak and keep my idle time to an absolute minimal. Idle time will absolutely clog your dpf filters and cause a whole host of issues.

@gripgetter Год назад

I have this same issue going on with my 3406E Cat motor it doesn’t overheat but spits coolant out the overflow tube

@gavikpt1 Год назад

Did your problem get fixed sir? What was the issue?

@tarjethaulingllc5879 11 месяцев назад

I just found a bad thermostat that created pressure. The t-stat wasn't opening all the way. it was enough to keep the temps within range but was creating enough excess pressure to blow out.

@TruckerBill0531 2 года назад

If you take a antifreeze stip scap the carbon from said EGR. Now add a cap full of distilled water until carbon is dissolved. Test with strip….beats taking it off for a simple test

@truckingandfixing 2 года назад

Thank you for sharing your experience!

@Smooth_Operator_83 3 месяца назад

Hey Ryan, my coolant level fluctuates abnormally in my 2007 freightliner Columbia Detroit 60 14L. It will be so low cold that truck won’t start due to coolant being below low coolant sensor. I will fill to halfway mark, but then after running the truck the coolant will rise above the max line.

@olegcurtev8044 7 месяцев назад

Ryan . Perfect video. Thank you. 3 years ago I did overhaul due to same problem. I got a head gasket problem. My mechanic blocked my EGR cooler . He said that this is ok for my engine. I have Volvo 2008 with Cummins engine. So if my EGR is blocked it means it could be again block gasket or air compressor??

@briant7067 Год назад

Good info! Thanks

@derrickmiller7218 Год назад

Do you ever give advice to truckers if they’re having similar issues?

@SheaCullen-nk8xh Год назад

GooDay, Thank You

@domenicdifilippo2647 5 месяцев назад

Thanks Ryan. I'm having a similar issue with my surge tank. It's not overheating or dirty but there's pockets of air in the surge which is triggering low coolant and stop engine sensors. Coolant levels and coolant temperature are normal. New coolant, tank, and coolant sensor but the problem persists. Do you think it might be the compressor?

@jeffreycrowther1374 Год назад

Have you ever repaired. Injector cups on isx with kit from industrial injection out of salt lake city Utah

@dperez7656 Год назад

Mr. Ryan, There were bubbles coming out of the overflow together with the coolant antifreeze?

@bajramavdullahu79 5 месяцев назад

I have that problem at Volvo d13 engine Just under heavy Load uphill I do not have any leak bot when pressure buildup the coolant over flow thru the cap valve what you recommended to check EGR Cooler or compressor ?

@nlo8886 2 года назад

👍

@truckingandfixing 2 года назад

Thank you!

@nasimwehbe8410 3 месяца назад

Im suspecting my EGR cooler is bad, but i only build pressure when climbing a mountain with a heavy load. Starts to dump coolant out of the overflow when the temps go up. When the fan comes on the pressure goes back down. I noticed once while doing a parked regen. Temp would go up, pressure would build, and coolant would come out of the overflow tube. Fan kicks on, temp goes back down, leaking stops until it repeats the process. Didn't do it before, just started happening this summer. Have a Volvo D13. What do you think? And thank you for this very informative video.

@kentrellhicks5257 Месяц назад

Did you get your issue resolved?

@nasimwehbe8410 Месяц назад

@kentrellhicks5257 no, still doing the same thing. If it was the head gasket or egr cooler it would maintain constant pressure. I'm suspecting the thermostat isn't opening all the way. I was up in Seattle and didn't have the issue at all with the cooler weather. Once I got down to Arizona with 113° outside temps the coolant would stay above the 170 operating temperature. Just stayed at 180 to 190 and it never did that before either. I actually had to turn the heater on, and the temperature slowly started coming down. Had to stop once to refill the coolant reservoir.

@d0colb Год назад

I'm currently having issues with 2018 Cascadia DD15 pushing coolant when the heater is on

@heavychevy9230 Год назад

If this is the way you choose to test it that's fine I suppose,but wouldn't you have to check the soot on the hotside also to know it's not coming into the system pre egr cooler?

@msaleban1046 2 года назад

How can i get to your shop if i want to bring my truck to your shop

@truckingandfixing 2 года назад

Here is our website www.foxtruckandtractor.com/

@markthuerkoff7961 Год назад

Why do you still need an EGR system if you’re using DPF system ?

@Volvosemitruckmechanic4926 Год назад

Cause by putting cooled exhaust back into engine makes cleaner air come out and lowers exhaust temperature... Google it

@ragersgonnarage52 Год назад

Question-- does coolant "hold on to exhaust gases"?

@bashar447 Год назад

Do you think thermostat could cause same problem?

@zokirjonsultonov2582 4 месяца назад

👍

@DanLefebvre-j7z Год назад

Ryan, the company that I drive for has replaced the head,head gasket,air compressor and the EGR cooler. I'm still getting back pressure and losing coolant. Anything else that we can look at.

@ejthetrucka6296 9 месяцев назад

Now those are true facts! I've had more disappointment at Kw to make me wanna quit trucking. They don't know what they're doing and shop prices are too damn high let alone a timely matter of getting the truck fixed.....

@BIGMANLOLZZ 8 месяцев назад

I have a 2015 cascadia with dd15. It loses power and smokes accelerating from a stop sometimes. Only have this issue in the winter. I was told it was a bad head. I replaced. I was told it’s bad injectors. I replaced. Ecm got replaced. Fuel pump got replaced. I’m all out of money and the problem still exit. When the truck is warmed up all the way it doesn’t smoke and it only happens when bobtail. Under a load truck runs flawlessly. I don’t know what the problem is. If you have any idea please let me know.

@wildbill4193 8 месяцев назад

Can that cause exhaust to enter cab?

@rakimmason8 Год назад

Can the EGR Cooler be bad if I’m not noticing a coolant loss from the reservoir tank. I have code “EGR DELTA PRESSURE” SPN-411 FMI-1 Replaced Delta P Sensor and cleaned all connector pipes and ports. Check engine light still comes on when I pull up a hill. I get white smoke coming out of stack pipe when accelerating hard or pulling up hill. Once the “EGR DELTA PRESSURE” check engine light comes on then I get no white smoke anymore, but engine performance is decreased.

@greghess6077 7 месяцев назад

Have you ever had enough pressure that it ruined a radiator core? Causing to break and leak.

@TARANS012 7 месяцев назад

Mine has same issue so we had low coolant light coming up but every time we checked coolant wa ok then we changed the pigtail didnt help chnaged the tank it helped for few days then back again . Intake throttle valve gone bad after that my tank had little black color in it i dip my finfer in to see if its oil it wasnt oil as oil would stick to finger could tell ao what cluld it be i dotn want to pull head as i have no performance issue and not enough pressure at idling only on road . And it kinda smoke as if coolant burnign

@mattt3284 4 месяца назад

Over pressure not overheating, 2019 paccar mx13, sciped egr no soot gunk or coolant they said. Various pressure tests, combustion gas tests, all passed. At a loss. Bad fill cap? Bad pressure relief side cap? Checked air dryer purge valve, no coolant. Radiator seam popped. New radiator, new air compressor lines, new bushing, still happening. Three shops, no clue.

@DarinBergum-lo6lt Год назад

Hey, have you explained what needs to happen after an EGR cooler goes bad? I had mine replaced under warranty but the soot/snot in the tubes is astronomical. They said the system would burn it out. Is this true, or do I need to take everything apart and clean it?

@aiemenbelker9383 Год назад

Hey brian, I just changed the water pump on a t680 kenworth, and I feel like the engine temperature goes up faster than usual. When I go uphill, it does not overheat, and the fan kicks in. Unless it's in my head. Would you give me your two cents, please

@BlueSkyedCountry Год назад

I’ve got same problem with over heating when on lower gear for an automatic international truck with Cummins ISX 15. When I wake up doing pretrip I don’t see the coolant is like it needs to be re-filled but over flow when filled l., please give me your shop address so I can bring my unit boss

@die2375 Год назад

Hi can you tell me please why When I push the fuel all end don’t power up

@edwardpillard884 Год назад

I have coolant going into my engine oil when I pour it into the reservoir Now theirs too much oil in engine which is pushing it out through the oil filler neck when truck is running

@GearJamminHank 2 месяца назад

The problem is I'm losing coolant but I have no high pressure and no visible leaks. I'm gonna put a leak tester on it in the morning but I'm worried? 😔

@breadn5556 2 месяца назад

Check your transmission cooler usually under the cab right in the middle

@alw7810 3 месяца назад

I replace the Egr cooler and the Air Compressor but I'm still having high pressure in my cooling system. I do have combustion gas because the blue fluid turn yellow . The truck DO NOT overheat.. WHAT ELSE COULD IT BE?

@kentrellhicks5257 Месяц назад

Did you get your issue resolved??

@viram1831 Год назад

Damn I actually took it off and cleaned it, put that egr cooler back on...🤔

@makincash3337 Год назад

What the name of your shop. I would to call n price some work. 2016 dd13 cascadia

@cliftondonald7692 5 месяцев назад

What's the address to your shop

@truckingandfixing 5 месяцев назад

1120 high ave sw canton Ohio 44707

@abualsan1980 5 месяцев назад

Address

@terrellscaife2411 Год назад

Cool shit

@xMitEvox 11 месяцев назад

Have to same problem with my own 2007 Peterbilt C15, only thing I try and get parts and the guys at part keep telling me something different every time. I go one day and they tell me the Egr cooler is bad and when I decide to finally replace it, they say it doesn’t have it. They then tell me it has a precooler and not a Egr cooler. Then I don’t purchase anything and I go again and rinse and repeat anyone have clue on this situation to solve this problem.

@charlesstubbs9588 Месяц назад

Your c15 does not have an egr cooler! Egr coolers are for epa trucks!

@youtubeisawesome2487 2 года назад

the fault with your solution is that the cylinder head gasket that is leaking fills the cylinder and pumps the coolant into the exhaust, and makes it impossible to determine where its coming from, one psi of pressure raises the boiling point of water by three degrees, you should know this, a radiator must cool 30 degrees from the top tank to the outlet at the bottom tank per pass or its clogged, it does not take 8 hours to do a egr cooler, and a air compressor is about a two hour job, easiest way to check a egr cooler is to remove the clamp at the rear of the egr cooler and the rubber hose at the back of the engine and use a mirror to inspect it, sometimes the coolant will run out the clamp and leave tracks on the block. when a story seems to be fishy its most like just a story, drivers and customers say so and so said this, unless its in writing or you personally hear it the story is suspect.

@truckingandfixing 2 года назад

Thank you for watching the whole video and comment here. I would like to response to some of the points you stated in the comments. In case other people in our community also have the same questions. - Failed cylinder head gasket also pumps the coolant into the exhaust. It is absolutely correct. I mentioned the point in the video. I have a couple reasons to focus on EGR cooler in this case. 1. Most shops or immuture mechanic always go to the most expensive source to look for problems. It is not necessary wrong. However, it is not a practice I take. There are so many things can cause the same issue. I always go from the cheapest option first. It is cheaper for the customer. 2. If head gasket is the issue, you will also see overheating, white smoke and other abnormal things. However, customer didn't experience other issues other than the high coolant pressure. So considering all the information available, I think EGR cooler is bad. - About the exact boiling temp after increasing the pressue, it was not the key of this video, I just wanted to express that there is a correlation between pressure and boiling temp. Everyone can google the exact correclation. - About EGR cooler job and air compressor job, you stated it only took you 2 hours each to do the job. I am very impressed. I hope you meant the whole job. Take EGR cooler as an example, it takes near 1 hour to drain and refill the coolant. You will have to test the truck after installing the new EGR cooler. Cummins book says 8.8 hours for EGR cooler job. Again, just impressed by your statement. - Lastly, about the story. I run a shop, and I have 6 weeks of jobs currently. I do not have time to create stories here. It is not what I am good at and I don't have plan to become a story creator. All information is based on the customer coming to our shop. Thank you again for taking time to comment. I have read many comments from you before as well. I appreciate your continuous support! Have a wonderful day!

@youtubeisawesome2487 2 года назад

@@truckingandfixing aftertreatment engines have the filters on them, you can no longer look for smoke out the exhaust, sometimes you can smell the burning antifreeze, i did not or have i ever stated a egr cooler only takes two hours, reread the comment, i said it doesnt take 8 hours, and you state in your video that the egr cooler and the air compressor take about the same time to repair, AND i never said you made up a story, but your repeating a wild story a customer said cummins did this and cummins did that, i said customers and drivers lie, in a nice way, they dream up what they think it is and the c b radio guy said and then say cummins said this and that, as to it taking a hour to drain and refill coolant, get a sump pump and put a quarter in the garden hose and start with a 3/16 hole in the quarter to pump in the coolant and enlarge it till you get the flow you want,

@charlestrix7291 2 года назад

Making money is an action. Keeping money is behavior. Growing money is knowledge...

@dmitrydk92 2 года назад

Scam scam scam don't believe this trash

@joedoe5734 Год назад

7 to 8 Hours LOL I tip my hat to you bud. You milk a 3 to 4 hour job max for double the time wow!!! How do you sleep at night? Silk sheets help I bet.