Started low idle, runs rough

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kinsy2323
Posts: 1
Joined: Sat Mar 11, 2017 12:21 pm

Started low idle, runs rough

Unread post by kinsy2323 » Sat Mar 11, 2017 12:29 pm

My trailblazer started but sounds rough and acts like it is having problems staying on.
I pressed the accelerator and it won't Rev up. I just turned it off.
What kind of problems could this be? I was thinking fuel pump, regulator or injectors.
Any ideas???

 

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carriedi
Posts: 2279
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: Started low idle, runs rough

Unread post by carriedi » Sat Mar 11, 2017 7:35 pm

that could be any of those things or none of those things. you should have the vehicle scanned to find out what is going on. Idle control, mismatch air/fuel ratio, fuel trims, 02 sensor working normally, cat plugged up, throttle problem, misfire from either fuel or spark. without scanning to see what the computer is reacting to, everything is just a wild guess. Just replacing parts could get expensive.
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