Question about 1994 GMC Sierra

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I have a 98 gmc half ton exstended cab truck the engine light came on. when i accelarated the truck shakes and idle bad. but runs fine at norman driving

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I hade the same problem...the catylatic conveter had melted inside which was causing the problem...u can get a universal one from any muffler shop....

Posted on Nov 16, 2009

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Go to a local part store that will let you use their code reader hook it up (OBD II access plug is generally located under dash) and read the code to determine what sensor or engine component is malfuctioning.

Posted on Jul 02, 2009


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Is my 1995 GMC Sonoma 4x4 a half ton truck

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My lincoln navigator shaking? i have changed coils and fuel injectors but still i have the same problem? please help?

Is your check engine light on? Does the engine run smooth when in gear end just idleing? If the engine has a miss to it while idleing, Does the vehicle loose power as you accelarate? Depening on the mileledge on the vehilce if it isn,t a high mileledge vehicle ,End was not (Abuse) It probally needs a good majour tune up. Change the spark plugs end (Wires)

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I have a 1997 Saturn LS and it shakes while idling in a stop light. When I accelarate it hesitates to go over 30 MPH.

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My 98 F150 6 cylinder has started using coolant but I can't find a leak or anything. The engine light came on and it doesn't want to idle. The RPMs just drop down and the engine shakes the entire truck and...

Are you getting a sweet-smelling and white exhaust too? What you describe is due to a failed head gasket. Coolant is leaking into the cylinders and causing the bad idle (coolant isn't combustable).

Take it to a shop to get a compression check on your cylinders - you'll see one or two of them much lower than the others. Replace the head gasket and you'll be set.

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2 Answers

Engine shakes only when it starts one it warms up

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1 Answer

Fuel not getting to motor when the accelarator is being applied

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Dec 02, 2009 | 1992 GMC Sierra

1 Answer

Making puffing sound and shaking

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Cab ground and motor ground

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