Replacing Vortec 4.2L Camshaft Positioning Solenoid/actuator-Chevy Trailblazer/GMC Envoy (VVT)Sensor 

No problem that's why I make these videos to help others.

You welcome that's why I post these videos to help out.

The new sensor a GM or aftermarket part Looks easy enough Do you check with a OBD Scanner to see if its working?

@@regionvoices6607 yeah I checked with a scanner that's why I changed it because was throwing a code. Its aftermarket be careful which you get they have improved ones with springs to hold the screens. Unfortunately the one I got didn't have the springs.

@@GrimeTimeWithKenny What brand were they I'm a firm believer in genuine GM parts especially when it comes to sensors I had 2 bad wheel bearing ABS sensors that were aftermarket 3 bolts for the power steering pump?

Acdelco and yes 3 bolts for the power steering pump.

Thanks man

Yea I was wanting a 4 ton too cause I do work on heavier trucks also. But harbor freight had this 3 ton so cheap I couldn't pass it up.

May I send you a video? My 03 Envoy has 133,000 and is in a lot better shape than the one you're wrenching on Mine is making a sound that sounds like lifters I use AMSOIL & change it as recommend by them Just like for you to listen to it Thanks!

What is your opinion on this sound? photos.app.goo.gl/owwkuXFRmrkGjScV9

If sound is coming from top of engine could be collapsed lifter or a bad cam follower. Honestly every 4.2 I've seen sounds like this lol. I would try some engine flush first to see if you have a clogged lifter.

@@GrimeTimeWithKenny I'm just going to drive it until it quits Just annoying Goes away at 2000 rpm

You welcome

I would to be on the safe side.

You welcome!! An thanks to you for the super thanks!! Glad I could help

I have had good results in past with it. But if it isnt fuel or ignition then it be mechanical or maybe the wiring harness to the coil from the pcm

it could be the intake manifold these motors are known for the bolts coming loose on the intake close to the firewall, while the motors running shoot some ether behind the manifold toward the firewall if it has a leak it will rev-up then just torque the bolts to spec and hope you dont need to change the gasket.

Lol right

I always just use petroleum jelly cheap and works every time. And it helped the loss of power but still idled rough so I cleaned the throttle body an that worked. I made a video for that too

Honestly dont remember. I know I ordered it from rockauto.

You can get them at a parts store

I just disconnected the battery for a bit and it reset

Is it white smoke or steam? If steam it would mean you have a coolant leak. Which would be a head gasket. For the misfire a bad camshaft position sensor could cause that. Is it one cylinder or multiple? I'd change both if you do change them just to eliminate causes for a fair price.

@@GrimeTimeWithKenny it's not steam or water in gas or condensation. It's white smoke, gonna replace map sensor, do to possible calibration issue of injectors putting out to much fuel in one or more of the cylinders. I appreciate your input, thank you.👍

I just used a 3/8 ratchet and pushed the tensioner down enough to slip the belt off. Sometimes you may need more leverage like a longer rachet or a pipe or large wrench to slide on the handle

If it was the solenoid the timing would be advanced or retarded and it would seem it has no power

​@@GrimeTimeWithKennydo you think it wouldn't throw a code. It idles pretty good but sometimes it's like it's just not quite as smooth. It's really weird.

You need to clean the pvc line under the intake manifold on the drivers side , disconnect top of the hose and blow air down twards the bottom or put some type of cleaner in the line let sit and then blow air threw , you probably have that oil sludge leaking from bottom of resinater this is a sign of the pvc hose not valve being clogged i had the same problem kept changing canshaft solenoids till i found out what was causing the problem and that was it, i blew air threw mine and never had the problem again the sludge that was leaking from resinater on top the motor stopped to .

@@angelanuccio2167 i appreciate this very much, I’m gone let my friends who have been helping me out know & see how it works out for me! The mere fact you kept saying you kept replacing solenoids & found the REAL problem!

Yes I did. Has better acceleration now

No actually it didnt. Fixed the codes but was still running like crap. Turned out I had a bad fan clutch

I had to do a computer relearn but that's simple. Just disconnect the battery for 30 minutes. But if I was you and changing the oil I'd do a flush. It might clean sludge out of the solenoid.

@@GrimeTimeWithKenny I was actually thinking that, I just saw some STP engine flush when I was buying the oil and filter tonight. It says add a quart of it and let the truck run for like 10 minutes and then change the oil. And then that's supposed to get all of the grime and sledge out of it. Back in the day I would put some kerosene in and let it run for like 10 minutes to flush the engine sludge out, but being this has the VVT and is sensitive to different types of oil I think I may just use the engine flush.

All right so I flushed the engine and I unhooked the battery for a half hour I put all new engine oil and filter and then hook the battery back up took it around the block and now it runs even worse and the check engine light is flashing so I think I'm just going to have to replace the camshaft position sensor and the other part just like you did in the video I'll let you know what happens after I change all that

That sucks man. Yea I went through rockauto alot cheaper.

@@GrimeTimeWithKenny just put the order in they should be here tomorrow or Friday I will put them in and let you know if that fix the problem or not

Rough idle and poor acceleration. Very sluggish.

You can clear the codes either by scan tool or unhook the battery for 10 to 15 minutes. But make sure all power is drained from pcm by cycling the ignition switch a couple times or press the horn

Yo revisaría el encendido. bujías y bobinas. Yo también revisaría el combustible. filtro de combustible e inyectores de combustible. si todavía lo hace, entonces sería mecánico. Yo diría que probablemente tenga algo que ver con el encendido.

Idk right off I'll have to look it up when I get a chance.

I have to say i haven't had any issues with aftermarket parts. But the way I look at it is you get what you pay for and I get what my wallet can afford lol.

All parts are made in China

So should be good ignition wise. So I'd go fuel or vacuum. Clogged injectors or dirty fuel filter or could have a vacuum leak. Is it throwing any codes?

@@GrimeTimeWithKenny thanks for replying em no codes but imma see again later do a re scan. (Im stressing over this).

@@GrimeTimeWithKenny showed P0300 code It could be multiple things now Right

Still could be fuel related tho. First I'd try to figure out which cylinders are miss firing. Then work from there. Double check your ignition then fuel

@@GrimeTimeWithKenny thanks alot for guiding me. Ill check it out when i get a chance

Hello Manuel

The reason I changed the solenoid is cause the the timing was wrong and had now power at higher rpms. But yes still sounds like a diesel lol

@@GrimeTimeWithKenny did it at least get better in driving since? An did it get the noice to at least get lower

Yes it help it alot. Runs smooth and not as noisy as it was. But still got it when it's cold or first cranked but fades out when warms up

@@GrimeTimeWithKenny have you been driving it the way it is now? An how fast are you driving it and how long have you been driving it? Just wondering because I just did mine and what other parts did you do? I just did the timing solenoid the one by the power steering pump...and do you know if the timing can be done or what is wrong with it because mine is doing the same thing i wanna sell it but don't want no one to buy something they can't drive although its driving better an got quieter

@@imking4l3ft18 I've been driving it about 2 months now. Its running good at high speeds. I noticed on my yesterday my fan clutch is stuck engaged and that's were the knocking is coming from that I'm still having. Might want to check in to that also.