94 ssei full throttle surges, engine cuts out - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-09-2013, 07:23 PM   #1
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Default 94 ssei full throttle surges, engine cuts out

hello my engine is acting funny first off I just got the car 150000 miles when I stomp on it it will surge like pulse and doesn't open up like it should the car idles great and never dies but the idle pulses sometimes I changed the plugs wires oil brakes and the car just like totally shuts off but it idles fine going down the road but shuts off like I can punch it but wont gain rpms like it should help me please
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Old 04-10-2013, 09:55 AM   #2
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Have you been able to verify your fuel pressure, if not that would be a good place to start.
Are you getting any DTC'*?
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Old 04-10-2013, 10:15 AM   #3
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Start with checking the fuel pressure regulator. With the engine off, pull the vacuum hose off and smell for gas in the hose. If you smell gas, replace the FPR. With the engine running pull the vacuum hose, plug the end of the hose by holding your finger over it (to stop the vacuum leak) and see if there is an increase in idle speed when you pull the hose off.

The symptoms sound exactly like a plugged fuel filter. If you haven't changed it recently, change it.

Check fuel pressure using a gage. You can usually borrow these from most automotive parts stores. You pay a deposit that is refunded when you return the tool.

Is the check engine light on and/or flashing? If so, have the car scanned for diagnostic trouble codes and report back with the findings. Autozone will do this for free.
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