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98 Buick Park Ave sputtering


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HeavyBoat88
New User

Jul 19, 2011, 12:28 PM

Post #1 of 4 (3219 views)
98 Buick Park Ave sputtering Sign In

My niece has a 98 Buick Park Ave. She says at low rpm it sputters. Even at slow speed with cruise on and mainly at low speeds. I don't fool with cars like I used to and I haven't even looked at her car but my first thought was vapor lock or clogged injectors. Any thoughts would be helpful. Thanks


Hammer Time
Ultimate Carjunky / Moderator
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Jul 19, 2011, 4:19 PM

Post #2 of 4 (3204 views)
Re: 98 Buick Park Ave sputtering Sign In

Vapor lock is not possible and these cars. I would start out by checking the computer for stored codes. You may also need to test your fuel pressure while driving to determine if it shows any changes during the failure.



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Discretesignals
Ultimate Carjunky / Moderator
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Jul 19, 2011, 4:31 PM

Post #3 of 4 (3199 views)
Re: 98 Buick Park Ave sputtering Sign In

Fuel pressure should be 48-55 PSI and hold when the pump turns off.





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zmame
Veteran / Moderator
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Jul 19, 2011, 6:54 PM

Post #4 of 4 (3195 views)
Re: 98 Buick Park Ave sputtering Sign In

Also wouldn't hurt to pull the wires off at the coil and check for corrosion. If there is replace the wire, plugs and affected coils. If engine light is one pull the codes and post them here.






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