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1996 Oldsmobile Cutlass car jerking

Tiny
JV23
  • MEMBER
  • 1996 OLDSMOBILE CUTLASS
Engine Performance problem 1996 Oldsmobile Cutlass 6 cyl Front Wheel Drive Automatic Hi. I have a 3.1l engine in my 96 cutlass supreme sl that jerks bad. It jerks when im on the gas but it really jerks when im at a constant speed anywhere above 40 mph. Also the code I have said that the #4 cylinder was misfireing and I seen fuel leaking from the fuel pressure regulator. Can you help me, I have already changed the spark plugs, spark plug wires, ignition coils throttle position sensor, idle air sensor, air filter, fuel filter, and both o2 sensors. I need your help!
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Tuesday, February 17th, 2009 AT 3:21 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi:
Is there a reason you didn't replace the fuel pressure regulator?

Joe
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Thursday, February 19th, 2009 AT 10:49 AM
Tiny
JV23
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  • 4 POSTS
I just noticed it when I posted the message. But since I changed the idle air sensor the jerking got worse. Im scared to drive my car now!
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Thursday, February 19th, 2009 AT 11:00 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Has the check engine light come on? Also, have you replaced the fuel pressure regulator?
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Thursday, February 19th, 2009 AT 1:40 PM
Tiny
JV23
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  • 4 POSTS
The check engine light is on and the code that showed that the #4 cylinder misfire. I haven't changed the regulator yet but I plan to over the weekend!
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Thursday, February 19th, 2009 AT 2:00 PM
Tiny
JV23
  • MEMBER
  • 4 POSTS
Well, I got the regulator changed but the car is still jerking. I just can't find out what can be causing that. Please help!
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Saturday, February 21st, 2009 AT 3:11 PM
Tiny
JWT767
  • MEMBER
  • 3 POSTS
I had this problem with my 96 cutlass, here's what it was.

There is a hose going from the PCV valve up to a hole on top of the intake manifold. There is a rubber grommet that goes around the fitting in that hole. I replaced the grommet, and the jerking stopped, it was sucking in to much air from the top of the intake manifold.

Might fix your problem.
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Tuesday, October 20th, 2009 AT 10:23 AM

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