1988 Buick Skylark RPM's Drop and car Shakes

Tiny
1988BUICKSKL
  • MEMBER
  • 1988 BUICK SKYLARK
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 38,062 MILES
My Buick's RPM's Drop when going 40mph or higher and the stearing collom shakes really bad, not just when going up hills. What could be the problem?
Thursday, January 21st, 2010 AT 12:31 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
If the RPM's drop and you feel a vibration, chances are the problem is the engine is missing. I would start by checking fuel pump pressure.

Here is a how to:

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Something tells me you are not getting enough fuel. If the pressure is low, check it before the fuel filter to make sure it isn't plugged.

Let me know what you find. Also, I am assuming that the check engine light hasn't come on because you didn't mention it.

ALso, most parts stores will lend or rent the pressure gauge you need.

Joe
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Thursday, January 21st, 2010 AT 8:13 PM

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