CHECK ENGINE LIGHT - NO CODE

KRISTA

MEMBER
3 POSTS

I then bought the car.... Engine Light comes on three weeks later while gearing up from a stop. The car this time jerks violently in 1st & 2nd, (like with someone who can't drive standard). Car fine in neutral- pull over, turn off car and then back on ... engine light still on but no running problems.
Check for codes - No code! What is going on?

Apr 7, 2007 at 10:59 AM

JOUGH626

✓Experienced Mechanic
55 POSTS

I had a similar problem. Everything was fine, engine wouldn't run and it without the engine running, the check engine light would not come on. My manual said after 10 seconds of cranking with no start, the CEL would come on alerting you to a problem. the CEL never came on. My manual said, not in so many words, that if everything else is ok and you don't get a CEL or a code, the engine computer is faulty.

My suggestion is to find a known working engine computer and swap it out. Good luck.

May 19, 2021 at 7:22 AM

BRUCE HUNT

✓Experienced Mechanic
3,754 POSTS

Clear the computer again. Check the tranny fluid for level and color. Then I ask where are you getting the codes read? Have you considered another pull at the codes with a different system?

May 19, 2021 at 7:22 AM

KRISTA

MEMBER
3 POSTS

Thanks for the tip. I will check the tranny fluid.
I will most likely have it looked at by the $mechanics$ for the sake of their computer technology. I had checked for the codes via the procedure recommended in the codes book, (insert connector piece or paper clip into 2 wire connector under the dash passenger side.) After several attempts with no codes flashing, what does one do but reset and hope it a) never happens again b) next time it happens there's a code!

May 19, 2021 at 7:22 AM

BRUCE HUNT