Goodafternoon, my hummer h3 idles, shakes and trembles wh...

Goodafternoon, my hummer h3 idles, shakes and trembles when its in park and while driving. make a huge sound while turning it on and takes forever to turn on as well. Traction failed light turns on Mechanic's Assistant: Ju...

Goodafternoon, my hummer h3 idles, shakes and trembles when its in park and while driving. make a huge sound while turning it on and takes forever to turn on as well. Traction failed light turns on Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about? Check engine light and the Stab. Sys traction failed Mechanic's Assistant: What year is your H3? 2008 Mechanic's Assistant: Are you fixing your H3 yourself? What have you tried so far? I had a mechanic come to check it and he said it was the camshaft and crank shaft so i had him replace them , he also said the spark plugs were mad and that they has oil in them which he said wasnt an issue, still had him replace the spark plugs just in case. he made my h3 get worse than it already was Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? No! thank you

Automotive Expert
Greetings. I work here helping customers like you repair their vehicle. Let’s begin with a diagnosis, plan and repair that will save you money.

Automotive Expert
He may have gotten the spark plug wires crossed causing the misfire. As far as the warning lights go, get the trouble codes retrieved from the body control module and any other module for that matter to see if perhaps the computer has already found a problem and has set a code in memory for it or them.

before he did that, my h3 had already been trembling and shaking while driving and parked
Automotive Expert
I assume you meant he changed the camshaft and crankshaft position sensors?
Automotive Expert
Did he find engine trouble codes for them 2 sensors? Let me know if there is anything further that you need on this topic. Thanks for visiting and good luck with your repairs!

when he first came he put the scanner and he told me it was the camshaft/ crankshaft that needed to be replaced si went to buy both so he could replace it and when he was he said he only needed the camshaft that the other one was still good that it was only bendthen he said i needed to replace the throttle body because it had 2 screws missing
Automotive Expert
When you went to purchase these parts did you ask for sensors or the actual shafts? Why didn't he just find new screws?

i asked for the actual shafts, no sensorsi dont know! he said he would cone back to fix it and he hasnt. its been more than 2 weeks now
Automotive Expert
Unbelievable. Is this mechanic a friend?

no he works at a mechanic shop but he came because i couldnt drive the truck over there since it was trembling really bad and the traction failed light was on and beeping
Automotive Expert
What were the trouble codes and what are the codes as of now?

hi, a family friend mechanic came yesterday and he checked my h3 ,h3 said everything was good. that maybe it was the timing belt/ chain
Automotive Expert
Then install a new timing chain/belt. If you want instructions, let me know which engine is in this.

i believe is 3.7 L 5-cylinderwhere can i get the part?
Automotive Expert
Rockauto, summitracing, autozone, advance auto, o'reilleys, the dealer, etc

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