03 suburban check engine light

[Heather AL]

Yesterday my truck info center started flashing reduced engine power and the check engine light came on, the truck began to shake. today when i cranked it, no problems or lights. does anyone have any idea what happened?

[Michael]

I don't know, but my battery went dead (left my sirius radio on while I was gone for the weekend) and I got it jumped, then the same thing happened. I hope mine goes away too... I drive an 04 1/2 ton Chevy. But if anyone has any help to post, I would love too see it as well...

[Tiffany - Germany]

Close to what Heather has a problem with. I'm thinking it could be the alternator. I didn't drive my truck for a couple days, and it had a hard time starting the next time i got in it. I did the same thing last week, didn't drive it for a couple days and now it wont start at all. My yellow engine light comes on and it wont turn over at all. I don't think its the battery since my dome lights come on, when i try to start it along with the radio. Have any idea - what i can do.

[Hugh Easton MD]

Heather AL wrote:

Yesterday my truck info center started flashing reduced engine power and the check engine light came on, the truck began to shake. today when i cranked it, no problems or lights. does anyone have any idea what happened?

We have the same problem with our 2007 Suburban LTZ. All of a sudden the truck makes a big clunk and the engine runs on reduced power. The dealer can't figure out what is wrong so they are changing the accelerator switch. wish me luck.