92 5.7 buick roadmaster

Asked by Apr 07, 2016 at 06:16 PM about the 1992 Buick Roadmaster Limited Sedan RWD

Question type: Maintenance & Repair

I am having problems with my 5.7. It runs fine at
an idle but when you give it gas it misses and revs
slow with no power. I have changed the plugs,  
wires, cap, and butten, but still has the same
problem.

3 Answers

85,415

May be a bad fuel pump, should check fuel pressure, change the fuel filter first. Fuel pressure should be 9 to 13 lbs. Also may have dirty or faulty injectors. Another cause could be the coil, you can have that tested at Auto Zone.

U need to have someone put it in drive and hold the brakes and spin the cap clockwise

Is your catalyst converter throttle body may possibly need to be clean

Your Answer:

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