Question about 1989 Pontiac Grand Am

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Seems to be missing on one cyl.

Car was sitting 6 months before i got it,ran real good for 122 miles then suddenly started skipping,it is a 4cyl dohc fi eng.

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  • 1,198 Answers

Find a real dark spot, on a real dark nite. Raise the hood and check the plug wires for any spark jumping.
Also check all the vacuum hoses, fittings, pcv valve.

Posted on Nov 26, 2013

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Posted on Jan 02, 2017

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SOURCE: Car will turn over but will not start unless gas is fully applied

check for massive vacuum leak at intake and also check timing ...compression test alone does not eliminate timing as suspect

Posted on Dec 15, 2008

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SOURCE: car starts but smokes real bad and rough idle,code

if its white smoke look for coolant getting into the cyls, black smoke could be leaking injectors

Posted on May 19, 2010

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SOURCE: i replaced fuel pump aprox.

pres.reg.or TPS

Posted on Nov 27, 2010

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