Seeking advice

[Clark]

Hi guys
I feel a very slight tremble thru my steering wheel while at idle. My H3 runs just fine. So I figured I should just clean my MAF sensor
and my throttle body. which I did. Now 2 years ago I installed the NGK iridium laser spark plugs. They say the plugs are good for 100K miles
Should believe this statement and change the spark plugs? or can it be one of the coils ?:roll: I would really appreciate the advice. Please

 

[4speedfunk]

Try some OEM plugs, and check for rust & corrosion in the plug wells.


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[mjferencak]

Check your engine mounts.

 

[CaseyS]

Second the motor mounts.

 

[Clark]

Motor mounts? really. OK I'll have them checked out. Thanks guys

 

[lowtrac]

What’s the recommended way to check the mounts? Back in the day we’d leave the hood up, hold the brakes and hit the gas and see if the motor moved.


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[Guerrero]

I think that way, plus visual inspect, lookinf for cracks of the rubber in it.

I second motor mounts....oem plugs....or clean maf and throttle body. If that wouldnt help, I'll check intake manifold bolts, maybe beaing loose and allowing some air to go in...but not enough for a CEL

 

[mjferencak]

I don't have the pics anymore but I was replacing all my bushings (control arms, front diff, cross member,...) and when I took my engine mounts out I realized that they had separated from the metal housing completely. Once the mount was off the truck was when the rubber fell out the metal sleeve.

 

[Clark]

What’s the recommended way to check the mounts? Back in the day we’d leave the hood up, hold the brakes and hit the gas and see if the motor moved.

Ok I checked my engine mounts the old fashion way. And my engine stood still on both sides. Because of the cold temps here in new york I
couldn't get under and physically check the mounts for wear. I'm getting too old for this...lol
Thanks guys I also thought about replacing the copper inserts in my coils. maybe it could improve my idle.

 

[Chimpy]

Tensioner pulley?

 

[Traxx]

Stick with the oem plugs, check for corrosion, might have a weak coil.

 

[mjferencak]

Did you pull the plugs and inspect them? The spark plugs can tell you alot.

 

[Clark]

Did you pull the plugs and inspect them? The spark plugs can tell you alot.

Well because the auto parts does not accept returns on electrical parts, I installed the E'3s I bought.
the tremble has calmed down alot. Wow I'm amazed. I figured to get thru the winter with them. I also took
the NGK's I removed to my mechanic..and he stated that the rice plugs stopped firing hot enough for
proper combustion that was the reason for the tremble. don't buy them again!!!
So I drove my truck for about 100 miles and she's running great.

 

[3Hummers]

Great news.

 

[Clark]

Thank you guys for all your advice!!! May everyone here in this forum have A VERY MERRY CHRISTMAS AND A HAPPY NEW YEAR!!!
Thanks again...