Question about Chevrolet Cars & Trucks
I have changed the plugs and the fuel pump and the fuel pressure regulator
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Posted on Jan 02, 2017
well the pump is in the fuel tank and it depends if the tank is full or not if it is its very heavy and you will need a jack and 1 other person to help you there are two fuel lines to unhook and the electrical connector. When replacing it replace the entire fuel pump/sending unit and the electrical harness or you will end up having more problems also spend the extra 15$ and replace the fuel filter
Posted on Jan 08, 2009
SOURCE: Hesitation problem
try cleaning the inside of the MAF sensor and do the following procedure as well.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Mar 24, 2009
had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!
Posted on Jun 06, 2009
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