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Old 11-19-2012, 05:52 PM
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vibration help

when idle i get a kinda surging vibration and a little rough idle. as well as around 40-50 mph it seems to get rough. what could this be? i took it to a shop and said all injectors were good and did all the tests on it and they said the truck was fine and it might be that all the injector nozzles weren't perfectly the same size and that does it.. is that right? what could it be?
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Old 11-19-2012, 05:53 PM
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you can feel the vibration in the feet..its like it comes and goes from weak to stronger then its gone again.. happens every few seconds
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Old 11-19-2012, 06:11 PM
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Stick truck?
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Old 11-19-2012, 06:38 PM
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Tell me more about it. I have felt that before when I have had clutch issues in other cars. Make sure everything that you can see is straght. No bent pullies, damper, easy stuff like that. Rule out the small stuff first then move on to the expense stuff!
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Old 11-19-2012, 07:27 PM
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sorry... its a auto 01 ccsb 4x4 with 110,000miles all stock.. i notice it more when I'm in drive and on the break like at a stop.. i can still feel it in park but not that strong
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Old 11-19-2012, 07:28 PM
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could it be my injectors are good but not all shooting the same amount of fuel out due to very light differences in the injector heads like the guy said and that they should be machined to be the same?
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Old 11-19-2012, 07:30 PM
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the shop said my injector number 8 was bad and they replaced it and it seemed to help for a day or 2 now its doing it again
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Old 11-20-2012, 10:51 AM
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anyone have any ideas?
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Old 11-20-2012, 02:28 PM
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i just disconnected the icp and the vibrating is gone but it idles a little rougher.. does that mean the icp is bad or its fine and something with the injectors is bad? a shop ran all the tests and said all the injectors are working good
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Old 11-20-2012, 05:49 PM
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