1992 Buick Roadmaster 5.7 liter v8 loss of power and almost stall

Asked by Feb 11, 2016 at 08:32 PM about the 1992 Buick Roadmaster Limited Sedan RWD

Question type: Maintenance & Repair

I own a 1992 Buick Roadmaster 5.7 liter v8 I was
driving home exited the freeway got a half way
down the road when my car all the sudden died I
removed the intake and the air filter and started it
and it started fine I reassembled the breather and
put the intake back on  when revved in park it seem
to be fine but when I would put it in gear and give it
a good amount of guys it acted like it wanted to
stall and there was no power at all but when I
would lightly press the pedal it would accelerate
fine the moment I floor it it would try to stall and
there's a complete lack of power going off
common knowledge I assumed it was the fuel filter
which I replaced nothing changed so then I replace
the fuel pump and I'm still having the same
problem what do you think it could be it sounds
like something to do with the air to fuel mixture

4 Answers



2 of 2 people found this helpful.

Fuel pressure should be checked. I would also look at the timing. If your chain is worn enough and it slipped over one tooth the car could also act this way.

2 of 2 people found this helpful.

I have had a similar issue with my 92 sedan. I would look into the electrical systems, specifically distribution and ground connections.

Did you ever find the culprit? My '92 wagon is doing the exact same thing

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