Question about 1997 GMC Yukon
Check the spider.. EFI spiders are in intake and deliver fuel down intake runners,, they get old and crack and dribble causing un antomized fuel to leak into cylinders causing hard start a d drivability problems
Posted on Nov 10, 2013
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Posted on Jan 02, 2017
It sounds like your fuel filter has got to the end of it's life and needs to be replaced. Once the fuel filter get's to dirty, the fuel pump can no longer keep the proper fuel pressure to the fuel injectors to have them work properly. The fuel filter should be replaced once a year or 30,000 miles to ensure that it's always clean. A dirty fuel filter will make the fuel pump work harder and shorten it's life time causing a costly fuel sending unit replacement. Good luck and be safe.
Posted on Jul 27, 2009
I do not think it is the PVC valve. I could be the Idel air control vavle, the tps sensor (throtal postion sensor), and it could also be a vacume leak. Is the check engine light on? if it is then you need to run the codes to get a better idea of where the problem is. if not that does not mean that the computer is not picking up any codes. you should check the codes right after you experince the problem and you should run the koeo test. key on engine on test that will pick up any codes from the sensores while the engine is running. this is all asuming that you have a modern vehical that uses a computer. if your vehical is older and does not have a computer it could be a sticking float in the carb. or a few other posablitlys. What is the make model and year of your vehical ? with this information i will be able to give you a more definate answer
Posted on Sep 22, 2009
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