06 lly 6 speed manual problems

6436 Views 37 Replies 11 Participants Last post by 06_DRW_LLY, Mar 22, 2010

Big A

Discussion Starter · Mar 3, 2010

I recently bought an 06 gmc lly with a 6 speed manual tranny. When i get up to around 75-80 mph the rpms are up around 2200-2300 and the service engine light comes on. At this point you cant go any faster....sounds like the thing is going to blow up. Whats the deal?

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x MadMAX DIESEL

· #2 · Mar 3, 2010

What are the codes?

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x MadMAX DIESEL

· #4 · Mar 3, 2010

Take it to AutoZone, they will read codes for free... I would say don't have them clear the codes till you write them down and post them up.

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x MadMAX DIESEL

· #8 · Mar 3, 2010

Yep thats what it is. Go ahead and clear it. If it comes back on the EGR is probably stuck closed, it's happend to a couple trucks... Most people block the EGR off anyway and I suggest you do the same. Its a good idea to block it off.

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x MadMAX DIESEL

· #10 · Mar 4, 2010

Yes. The only way of keeping a check engine light from coming on is to block the codes with EFI Live, Some tuners, and KDs fingerstick

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x MadMAX DIESEL

· #15 · Mar 4, 2010

Sure bud, Thats not my truck though... Its the truck from transformers lol your not the first to compliment it though lol

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