Forum: General Tech
02-27-2011, 07:51 PM
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Replies: 2
Views: 832
Re: Engine shuddder
Ok so the truck ran well for a while and now it popped a code for 401 for an egr blockage. Replaced the egr valve and that didnt work. Still have a horrible shudder and the first catylitic converter...
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Forum: General Tech
02-20-2011, 09:28 AM
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Replies: 2
Views: 832
Re: Engine shuddder
Replaced the coil pack and the shudder is gone. Truck is running like new again.
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Forum: General Tech
02-01-2011, 04:10 PM
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Replies: 2
Views: 832
Engine shuddder
My '01 had a rough idle and has now progressed to a shudder at idle to about 1500 rpm and also picked up an acrid burning smell and a smoking catilytic converter. Did some research online and looks...
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