Question about 2000 Chevrolet Blazer
Blazer was running fine then when on the highway the engine sputtered and had to pump the gas pedal to get a couple blocks off the highway. Car would start then die after running rough for a couple min. Replaces IAC, PCV and cleaned the EGR. Would run but when I pump the gas the engine will start to die unless I let off the gas pedal.
Did this work? having the same problems??
Posted on Jul 23, 2014
I agree with Peter on this one. Sounds like low fuel pressure. First thing is to be sure that you have around 55-60 psi when you turn the key on and running should be around 55. If the pressure drops much below these no.'s the fuel pump may need to be changed. Don't forget to check and/or change the fuel filter also.
Posted on Jan 23, 2013
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Posted on Jan 02, 2017
you need to replace the fuel pressure regualtor underneath the plenum , ck fuel pressure if it drops suddenly after you shut the engine down suspect fuel regualtor , use to have to replace the whole spider assembly now i think you can just replace the regulator
Posted on Dec 17, 2008
Hook up a fuel pressure guage. Now with the key on and engine off does the fuel pressure come up fast and hold steady at a fixed value?
Posted on Dec 28, 2008
there is a vapour purge line from the tank to a charcoal cannister. The line& cannister has been contaminated with liquid gas. When the engine attempts a normal purge from cannister it gets loaded with raw gas, causing rough running and cherck engine light. Replace cannister. Never over fill gas tank, especially on hot sunny days
Posted on Jun 06, 2009
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