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Old 07-10-2011, 06:53 AM   #5
MT-2500
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Re: Blazer p0740 help

Quote:
Originally Posted by FishFind View Post
The odd thing is that from what I have read the CEL whould not go on untill the tcc attempts to engage at 40mph.
On my car the code comes on within 5 seconds of starting the car, even after it was cleared. Never shift out of park.
When the ign is turned on and or engine is started the VCM computer checks things out.
If it finds a problem it may turn on check engine light and set a code for the problem found.
In you case.
Code P0740 is telling you there is a open or short to ground in the TCC solenoid circuit.

You need to repair the circuit or TCC solenoid.
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