2003 Mitsubishi Galant 2.4L 4Cyl Idle Issues

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I apologize for portrait video instead of landscape.
My 2003 Mitsubishi Galant has been having idle issues for a while now and I finally tried to catch one of the many issues on camera. Sometimes it idles high, other times it idles low. Not sure if I need a new throttle body or not. Lemme know if you know whats up with it. I also forgot to mention that it has thrown codes in the past (P0506 and P0507) and I have replaced the IACV.
Edit: For people asking the solution I had was buy a brand new (not used, I tried that also) throttle body off of eBay and the thing ran fine up until I snapped the timing belt lol. was able to fix it and get it running again but now I moved onto a Forester 😀

Опубликовано:

16 мар 2018

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Комментарии : 60

@junetile1ify 4 года назад

I had the same problem and it was the mass air flow sensor.3 years later and still no issues. Make sure its a mitsubishi OEM. After market ones kept making my car stall out at red lights with the ac on.

@julzmax956 4 года назад

I had this problem on my galant a while back and the forum guys told me to change the ground wires in the engine bay. I did it and that did the trick. All the light stayed on nice and bright after that. Make sure your battery is providing enough juice, have it tested. If I remember correctly, there is a flat braided ground wire from the firewall to the engine, change that wire to a fat ground cable too.

@cactar4minecraft 4 года назад

Yeah I actually had to do the same recently. The inside of the cable was totally destroyed. Now she starts up fine.

@wesleyreid3128 4 года назад

I have a 1998 super saloon.... first the neutral light kept blinking and once I go in drive: it loses power, looooow rpm, now it wont start and sometimes it backfires. I can't get a decent mechanic to give me a good diagnosis

@cactar4minecraft 4 года назад

@@wesleyreid3128 I myself am not a mechanic so I can't give an accurate answer, just an educated guess. Neutral light is either the sensor for it being in neutral going bad or I am wondering if it's an electrical issue related to it not starting. I would go simple first and find the ground for the dash and the sensor and make sure they are fine. Then if you still have the issues you might have to look into that sensor for neutral. Not starting is something I wrestle with all the time currently. Replaced the Ignition Switch and then down the line I had to replace my negative wire coming off the battery as it was filled with corrosion. Now I think the ignition switch is bad again so I am going to try and bypass it with a push button start

@wesleyreid3128 4 года назад

@@cactar4minecraft I just took the neutral switch off.. it does look bad where the connector goes

@cactar4minecraft 4 года назад

@@wesleyreid3128 Hopefully that's all it ends up being and it fixes all the issues you are having. If not then just keep chipping away at the issues by fixing the little stuff haha

@jacobwebb8818 4 года назад

1:14 I swear when you turned the fan on I felt a breeze on my arms and I was like haha that's funny so I did it again and I felt it again but on my third time my ceiling fan had had enough already 😂

@cactar4minecraft 4 года назад

Damn my Bluetooth control for your fan must have stopped haha

@JohnIvoryMusic 4 года назад

Lmao

@garlicbreadjenkins5780 4 года назад

my 04 galant is having a similar, but its idles at 1300ish in park, tries to stall if you turn on ac, and tries to stall in drive with ac off, when you drive you need to left foot brake and keep it at about 1000 or it tries to stall

@pabloguzman8581 4 года назад

RandomGamer did u figure anything out about how to fix this issue? Mine has a Similar problem

@awill6615 4 года назад

Make sure your sparks are properly gapped, my 2001 Mitsubishi needs a .044 gap and when I changed the sparks the old ones were at a .60 gap. And now it idles at 800, it was my sparks

@cactar4minecraft 4 года назад

I can't remember if that video was before or after I did plugs but I know when I did that they were gapped (and checked) to .044

@anisasego1624 3 года назад

My 03 mists is doing the same thing but idling low to the point it shuts off, I changed the spark plugs and the calibers I can't figure it out I spent $500 at a body shop to find out they couldn't figure it out please help

@andrewbrackett7579 3 года назад

Idle air control valve replace it its like $30 on ebay

@JP-vx2sr Год назад

My engine has a rough idle and insane vibration when idling, same make and model as this. Any idea what it might be?

@cactar4minecraft Год назад

Sadly I have no idea. Only thing I can think of off hand is if it's a stable RPM but the car is vibrating the motor mounts. Otherwise I have no clue since what happened in this video was the rough idle I experienced and the throttle body was the issue in my case.

@jeffersonreyes301 Год назад

I have an 03 Galant ES, I know it like the back of my hand🤣 yup, definitely change the motor mounts! ($100 for the set of 4) and get yourself some GOOD SPARK PLUGS and you’re all set!

@joeyallcock1011 Год назад

@@jeffersonreyes301 will be lower torque worn or need correctly adjusted as per manufactureres guide losen lift at front measure tighten remove jack & torque bolts to ref:llb'ft If a/c cycle onoffonoff fill lowside to stop a/c clutch cycle repetition & another trigger can be bad battery temp sensor tells alternator FEED ME& K.K I'M FULL UP GIV US A MO' EASY ALTERNATOR CHECKER USB CHARGER WITH 12V DISPLAY MINE RANGES 13.3 /4 - 14.2Vdc shows wen car talk to itself by 13.6-13.7, 13.6-13.7, 13.6 fan came on 12.4-/12.8/12.9/13/13.2-&so forth that almost stall usually coolant fan kick on /if prob anywhere with sensor if kick on no almost stall jus a blip on rev at idle ur BABY'S NICE & HEALTHY (JoeDog)

@ballershanelle 4 месяца назад

@@jeffersonreyes301new too this female.. 2002. No manual or anything. did u get them from rocauto?

@hellrieda2 5 лет назад

my mitsubishi galant from year 1995 is having idle issues too. When i cold start it it wont raise rpm and will stall and shut off unless i press the gas. I cleaned whole throttlebody and replaced iacv. changed temp sensor too without any help. These things are notorious of having idle issues

@cactar4minecraft 5 лет назад

I'm by no means a professional, I just do shit in my driveway. But maybe it's a partly clogged fuel injector?

@hellrieda2 5 лет назад

@@cactar4minecraft i will replace lambda sensor next and check ecu if there is blown caps. Otherwise probs try with new throttlebody. I dont think it is injectors since car runs otherwise good

@cactar4minecraft 5 лет назад

@@hellrieda2 yeah I ended up putting a new throttle body on mine and it fixed my idle issues. Shits expensive though

@martyrehfeld9732 5 лет назад

Spirit Whale did u go with an OE replacement? If not what brand. Im having the same issue with my galant and am wondering if i should replace the throttle body and the throttle position sensor or just the body

@hellrieda2 5 лет назад

@@martyrehfeld9732 it was oem rebuild part wont remember brand. I already now what the problem is fiav side of the valve is stuck closed so it wont give extra air @ cold start. I guess im gonna fix fiav and block iac side off completely.

@reklessgaming5373 3 года назад

my galant is now having this issue as of today at 123,xxx miles as of 11/3/2020

@smokezilla3975 6 лет назад

only thing i found that kinda fix my,n had a lose battery cable where thay have them put together the flathead screw was lose

@cactar4minecraft 6 лет назад

I did end up replacing the whole Throttle Body and I haven't tried to replicate this but it fixed my idling issues.

@smokezilla3975 6 лет назад

maybe thats what i need to do to my,n when you hit the gas pedel to take off did it make a air sucking sound at the throttle body

@cactar4minecraft 6 лет назад

Just guessing but if its a sucking sound it typically is the IACV. If you have a ram air intake you'll hear the sucking sound all the time. But if you still have the stock air box and hear the sucking I would also guess the intake hose could be cracked because the stock air box typically eliminates the sucking sound.

@mrmanautomotive 5 лет назад

Sometimes its as simple as removing and inspecting the IAC for carbon buildup ---> ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8YVd5NICvpk.html Also, galants can be sensitive to overfilling the oil causing it to leak through the valve seals and onto the spark plugs, if this happens you'll end up burning out your coil packs or plug wires. Fortunately, that's also an easy DIY fix and plenty of people have videos on here to show how to diagnose and fix it. I'll be sure to make a video about the oil and coil pack issue sometime in the future.

@miguelvillareal8300 3 года назад

That's normal from in isle bro. Around 500. You could have a bad spark plug .

@weewurtkurt3524 3 года назад

Same i have a 2002 galant 2.4 l it idles low around about 700 no big problems but I had to replace my thermostat around those miles it got stuck closed

@owenwernert6560 4 года назад

Did you figure out what was wrong with it? Because my cars been having the same issue.

@cactar4minecraft 4 года назад

Yeah so I bought an entire new (not used because I tried that) throttle body off of eBay and it has ran fine since then. Only issues since I did that was when the aftermarket security system started dying so the car wouldn't start. That was fun tracing all the wires back and uninstalling the system haha.

@joeyallcock1011 Год назад

@@cactar4minecraft shudda retrain key/keyfob happens wen change fob battery or had main battery off low or flat too. Fix is free jus teach is the Key

@miguelvillareal8300 3 года назад

Bro if these cars didnt come with that radio then, I have your/that car. My car blue...

@ducebud36 4 года назад

Has anyone figured out the problem I'm having the same issues 2003 2.4L 4cyc

@cactar4minecraft 4 года назад

I replaced my entire throttle body with a new one. Tried a used one and it did jack shit

@bankai7350 Год назад

@@cactar4minecraft I know this is old, but where could I find a throttle body for it? I’ve looked all over the internet and can’t find one. Probably a junkyard?

@cactar4minecraft Год назад

@@bankai7350 At the time I got mine on eBay, but after a quick search I don't really see any new ones. I wish I knew what about mine caused it and made me need a new one because I'd imagine a good cleaning would help, but I used an entire bottle of carb clean on mine if memory serves and it still wasn't better until I put the new one on.

@bankai7350 Год назад

@@cactar4minecraft yeah I probably wouldn’t clean mine but I can’t find any anywhere sadly

@CDEW93 Год назад

@@bankai7350 I found one at autozone. I’m in tally

@mosquito_charmed8305 Год назад

How did you fix it?

@cactar4minecraft Год назад

New throttle body was what eventually fixed it for me. Tried changing the IACV and it didn't do anything, cleaned the throttle body and it didn't do anything. Replaced the throttle body and it was good as new.

@anthonycasey6064 4 года назад

Someone has screwed with the air mixture screw back it out about a quarter of a turn

@cactar4minecraft 4 года назад

Nah that was all done. I was the only person with a key and my roommates at the time were so car adverse they didn't do oil themselves. I had a bunk Throttle Body.

@tinfoilhatnews7489 5 лет назад

So here is a thought it’s the power control module not the IAC

@cactar4minecraft 5 лет назад

It actually ended up being the throttle body

@360milliondollars 3 года назад

Idle pressure valve or PCV or EGR.... Or just the AC motor turning on.... LOL

@inspectorjavert5563 Год назад

Would help if you actually put the camera on the tachometer lol.

@oFFgotoFF 4 года назад

Da fuq did I just watch? Don't ever do that to your car, no matter the year or model. Shut down all electronic components before switching the car off. If you do that a couple of times, most cars will tolerate it. However if this becomes a habit, you can very well kiss your eyes goodbye in no time. As for the problem, the only solution is a new battery and connectors. Also be careful with this in the future if you don't wanna do it all over again.

@cactar4minecraft 4 года назад

So I am not sure what you are losing you mind about. I never turned the car off. I was simply showing that before I did shut it off that day I had noticed a large drop in the rpm when I switched a lot of the climate control off. There was nothing wrong with the battery or any connectors and in this case actually ended up being my throttle body causing issues all around the car and after replacing the throttle body this was no longer an issue.