1994 GMC Jimmy EGR Valve

  • 1994 GMC JIMMY
  • 6 CYL
  • 2WD
  • 189,000 MILES
I have a 1994 GMC Jimmy. We got it about 10 to 12 months ago and ran great for about 3 to 4 months. Then it started sputtering and acting like it wanted to cut out and the check engine light came on. After haveing it check we were told it needed a new EGR valve. We did get it replaced for $360. We thought it was done and over with. Well about a month later it started doing the same thing. I took it to an other machanic because I thought this one riped my husband and I off. Well they said that there is carbon build up in it and there is no way to get rid of it from your engine on a truck as old as mine. Now I spoke with the person we bought the truck from and he said that when he has had carbon build up he would spray water from a spray bottle in to the breather after the engine is warmed. While the wather is being squirted in to the breather to keep the engine on a low rev. The enging would then start to sputter some and after a little bit more it would start running back to normal and then you can stop praying the water. He said he has done this to he motercycles and a few other cars. I am wondering if that could really help clean the carbon out with out damageing anthing? If not what would be an inexpencive way to clean the carbon out of my enging
Do you
have the same problem?
Thursday, April 1st, 2010 AT 12:07 PM

1 Reply

You can use water if you like but you have to be careful with this stuff. You can also go to a a dealer, ford or GM as they have the same stuff and it sprays in the engine and you let it soak for a while then drive the car kind o fhard to clean it out. But he's talking aboutcarbon in the EGR track not the engine. Usually you need to pull the intake or run some type of wire thing down the passages to clean it out. Also you can pull the egr valve and see if it's clogged and try to scrape it out a little.
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Saturday, April 3rd, 2010 AT 10:27 AM

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