i need some help! engine shaking

Incarceraided · Jun 27, 2004

my 99 V6 4.3L S-10 overheated on me, soo i changed the thermestat cuz it woulddnt open it was alll stuck then the water pump was leaking so i put in a new one. but it still had problems so i took out the radiator and had it cleaned and roded now its not overheating or anything but when its on and on park or not moving at all the engine shake a little and its kinda noticeable i look under the hood and the whole engine shakes. what i need to know is why is it shaking and what could i do to make it stop and be back to normal. plz help

BlazinPastU · Jun 28, 2004

Does it only shake at idle, and is it consistent oscilating shaking or relatively random hits?

Incarceraided · Jun 30, 2004

its always shaking when its not being accelerated

Teeleton · Jun 30, 2004

Pull all the plugs, open the radiator, and do a compression check on the cylinders. Overheated engines have a tendency to damage the head gasket. It may not have failed totally, but it could be severely weakened. If you pressurize a cylinder and the radiator starts overflowing, that's bad. If you have a low cylinder, that's also bad.

You might get a little overflow just from spinning the waterpump, so don't get panicky if it squirts a little water out.

Teeleton

rlith · Jun 30, 2004

Could also be a bad motor mount (coincidental I know, but still worth looking at).. I do agree with teeleton though, do a compression check..

Incarceraided · Jul 1, 2004

how do i do that and what plugs? sorry but im new to this. my first truck and dont really know much at 18

BlazerLT · Jul 1, 2004

Take it to a shop and have it compression checked.

RacerXS10 · Jul 1, 2004

happend to a friend who hit his crank angle sensor. man when that thing isn't plugged in all the way the motor will shake like a b*tch. my guess would be though to follow what Teeleton said, do a search on compression testing.

BlazerLT · Jul 1, 2004

BTW, are you getting any check engine lights?

Incarceraided · Jul 4, 2004

i was for a day then i took it to get it check and they didnt do shit but charge me ****in 50 bucks and said it was nothin and after that the light hasnt come on

rlith · Jul 4, 2004

Incarceraided said:
i was for a day then i took it to get it check and they didnt do shit but charge me ****in 50 bucks and said it was nothin and after that the light hasnt come on

Always take it to autozone, they check codes for free!

kevincolin · Jul 5, 2004

A plug might be bad

i need some help! engine shaking

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