Mechanics

HOW DO I REPLACE A FUEL PRESSURE REGULATOR ON A 88 VANDURA 2500 350 CU IN ENGINE

1988 GMC Other • 150,000 miles

Engine surges at idle, poor acceleration service engine light comes on intermittently. From doing some research it sounds like it might be the fuel pressure regulator.
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Ltysklind
September 1, 2011.



The "check engine" light is an indicator for a system that monitors many electronic functions in the system, also called the "malfunction indicator lamp" (MIL). It can come on for any of hundreds of different causes from any of the systems that the computer monitors. Some are very important and can lead to further component or engine damage and some are emissions related not as serious but still a problem and need to be repaired.

Your first step is to have the computer scanned to retrieve the trouble codes that were set when the check engine light came on. Those codes will give you specific information about what the computer saw and will get you pointed in the right direction to find your problem.

Wrenchtech
Sep 1, 2011.
Part of throttle body see diagram What was code?

Docfixit
Sep 1, 2011.