My '98 Sunfire 2.4 makes kind of a hard "hiccupp" after I take my foot off the gas..

Asked by Mar 14, 2010 at 11:13 PM about the 1998 Pontiac Sunfire 2 Dr SE Convertible

Question type: Maintenance & Repair

and when I start the car it also does that same clunk/hiccupp/slam .. I start it, and if I give it gas while parked, it sounds like its not getting enough gas without my help.  Its been using up a lot of gas lately, I hope this sounds like I need a new fuel filter and not a fuel pump.  Thank you for any suggestions.

3 Answers

25

could be a lot of things. Have you checked the cars ignition? You can also pretty easily check your fuel pressure with a pressure tester that'll tell you how your fuel pump is doing.

955

check your fuel pressure regulator too, pull the vacuum line off and see if it leaks. This usually causes a long crank, but sometimes some some runnability issues

THANK YOU VERY MUCH, I WILL GET THAT LOOKED AT ALSO. SMILES!

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