Help with bucking and shaking truck
#11
03-03-2010 | 05:58 PM
Junior Member
Joined: Mar 2010
Posts: 10
I had a similar problem. when I was cruising at speeds above 60 with CC on it would violently shake and buck. It ended up being two broken belts in the front tires from pot holes. I kid you not. WOuldnt do it all the time but when my speed was constat it would start doing it. put new tires on and worked like a charm
#12
03-03-2010 | 06:23 PM
Thread Starter
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Member
Joined: Mar 2010
Posts: 42
From: Auburn Ontario
I had a similar problem. when I was cruising at speeds above 60 with CC on it would violently shake and buck. It ended up being two broken belts in the front tires from pot holes. I kid you not. WOuldnt do it all the time but when my speed was constat it would start doing it. put new tires on and worked like a charm
#14
03-03-2010 | 07:00 PM
General Truck/Classifieds Forum Moderator
Joined: Jan 2009
Posts: 983
From: Columbia, Mo
You eliminated the tires by doing what I said earlier....you have a engine problem and replacing the coils is a good place to start.....pull the wires off the coils and check the posts on the coils......any burnt places or corrosion or other unusual conditions?.....sometimes just removing the coil and cleaning the grounding part will help too
#15
03-03-2010 | 08:07 PM
Junior Member
Joined: Mar 2010
Posts: 10
I had a coil on #4 go out on my 1999 silverado plow truck. You could hear it running funny and while I wouldnt describe it as a buck or kick, I thought of it as more of a place where there was no power because cylinder 4 wasnt firing. It ran rough sure, but if im correct this guy said it was a pretty bad shaking bucking situation
#16
03-03-2010 | 08:27 PM
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Member
Joined: Mar 2010
Posts: 42
From: Auburn Ontario
You eliminated the tires by doing what I said earlier....you have a engine problem and replacing the coils is a good place to start.....pull the wires off the coils and check the posts on the coils......any burnt places or corrosion or other unusual conditions?.....sometimes just removing the coil and cleaning the grounding part will help too
#19
03-04-2010 | 07:25 PM
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Member
Joined: Mar 2010
Posts: 42
From: Auburn Ontario
I didn't have a whole lot of time this evening but I did unplug each spark plug wire from the coils and they all SEEMED to be ok, I also dosconnected the wires, they too looked clean. Sometime in the next week or so when I get the time, I will be removing all 8 coils and inspect them as best as I can. Edit to this, I did notice in the spark plug wires that they were a bit carboned up, I am starting to get a bit frustrated with this lol. Anyways, I work at a high school and the shop teacher hooked up my truck to their scanner, even thoough the scanner didn't recognize my truck it still threw 2 codes. as you know my truck is a 2000 silverado 2500 6l vortec. The scanner didn't find my truck but the closest it came was a 2001. Is this reliable? I think the codes that were thrown were for both banks. I will find out from him what codes were thrown and post them, thanks.
Last edited by Daarrve; 03-05-2010 at 08:46 AM.
#20
03-05-2010 | 09:45 AM
Thread Starter
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Member
Joined: Mar 2010
Posts: 42
From: Auburn Ontario
I had a coil on #4 go out on my 1999 silverado plow truck. You could hear it running funny and while I wouldnt describe it as a buck or kick, I thought of it as more of a place where there was no power because cylinder 4 wasnt firing. It ran rough sure, but if im correct this guy said it was a pretty bad shaking bucking situation