What did you do to your OBS GMT400 Tahoe/Yukon Today?

[chaingun427]

They are still at the dealers over here. Didn't do anything to the hoe but can't figure this rough idle out on my ranger... Cleaned maf with maf cleaner, cleaned iacv, replaced plugs, replaced fuel filter I'm lost... Gonna have to take it to get scanned and go from there if not gonna have to take to my buddies shop and have home fix it or go Wild on eBay and purchase parts til it gets fixed

The iac is a common failure on the ranger I replaced one twice on my 98, pick up one from the junkyard cheap and see if it helps

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[noJeepshere]

That looks absolutely f***ing hideous What the hell is this world coming too? Tires beads over blown out to fit ugly wheel on ugly body with ugly front end look with a sagging ass. I say again is this world coming too? That looks absolutely f***ing hideous In fact just put the dub+ rims and tires on it and finish that ugly POS

---------- Post added at 04:50 AM ---------- Previous post was at 04:47 AM ----------

Couldn't agree more, that look is just stupid.

cent frum a smaert fone

 

[Gzes]

I cleaned that sucker good. I woukdnt be surprised. They are cheap on eBay but my old man doesn't want me throwing money at it if it's not gonna fix it. Kinda tempted to pull it back off and see if it moved at all from where it was. Mines a 97

 

[chaingun427]

What does it idle at? I'm assuming its a 4.0? Idle higher than 1200rpm would be your first sign its the controller. You should also be able to hear it actuate when you cycle the key without starting it as well

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[SunlitComet]

if it is at the right idle rpm and changes as it normally does but really rough it like cylinders are skipping beats sounds like your IAC is doing its job would look into things affecting spark and mixture.

 

[Gzes]

It's the wimpy 2.3 no rpm gauge so no idea but starting it revs it up fairly good then quickly down and rough and dead

 

[chaingun427]

Probably not the iac then

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[Gzes]

Weird thing is it was working good just shut off and would have to restart a few times but idled fine. My dad replaced a couple plugs but unplugged crap and that's when it started doing it. I found that he left an injector plug unplugged so plugged it in. I finished the job but removed the throttlebody to get to the last plug. Is it possible the gasket for the throttlebody isn't on good causing it to act funky?

 

[chaingun427]

A vacuum leak would cause rough idle for sure. I bought a grand am once that ran like hell, it only needed a vacuum line fixed

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[Gzes]

Nothing looks disconnected tho... Looked at the vacuumes and they are fine. Saw one hose open but it was for wipers and connected it. Tempted to just pull the throttle body off again and inspect the gasket.