Engine Hesitating

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Feb 24, 2007 | 08:44 PM

jcnsandiego

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From: SAN DIEGO CA

Engine Hesitating

I need some help or suggestions with my 99!
At low R P M the engine is hesitating when I accelerate and sometimes misses at high R P M. Can anyone help?

Feb 24, 2007 | 08:59 PM

CorvetteTechInc

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From: Newburgh NY

The obvious things to check would be plugs and wires (arcing or disconnected, plugs burnt or fouled). If all plugs and wires are find I might suggest finding someone with a Tech II scanner and check for misfires, sensors, injector tests, etc.

Is the car throwing any codes?

http://www.corvettedoctor.com/Code_Main.html

Feb 24, 2007 | 09:15 PM

jcnsandiego

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From: SAN DIEGO CA

No it's not setting any codes. I will change plugs and wires and see if that helps.
THANKS FOR THE HELP!

Last edited by jcnsandiego; Feb 24, 2007 at 09:29 PM.

Feb 24, 2007 | 11:16 PM

dgrant3830

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From: Van Buren Arkansas

Wounded Warrior Escort '11

Check out the PCV valve and the small line connecting it to the intake port. On my '99, it was doing the same thing then found a large hole on the bottom side of the rubber connector to the intake..hidden from view.

Feb 25, 2007 | 12:07 PM

jcnsandiego

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From: SAN DIEGO CA

Cool I will check that too.
Thanks I need all the help I can get!

Feb 28, 2007 | 11:19 PM

jcnsandiego

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From: SAN DIEGO CA

Thanks Again!!!!

I Found A Leak On My Pcv Hose At The Valve Cover.
Now The Car Runs Great!!!

Feb 28, 2007 | 11:55 PM

dgrant3830

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From: Van Buren Arkansas

Wounded Warrior Escort '11

Something I just recently found when I was doing the oil pressure sender relocation...I discovered that the cross-connect line for the PCV going from the left valve cover to the right valve cover, at the joint between, the rubber connection had disolved back there where no one can see it. The new replacement for it is a hard-plastic tubing assembly for it. I doubt this would cause any problems running-wise, but oil residue buildup and drippage on the rear of the engine would cause oil burning smell. Something to look out for.