Low Power after hitting a bump

[beav626]

is this it?

 

[bkboatnsleds]

yup!

---------- Post added at 09:12 PM ---------- Previous post was at 09:11 PM ----------

I also feel like there was other ground wires (not straps) in that same general area..

 

[beav626]

Followed the ground strap to that ground it it was tight.

How bout the BCM. what is a bad one of those like?

 

[beav626]

With the doors locking and unlocking I keep thinking about the ignition switch. It's unlikely that I got a bad one from the dealer. Wiggle test didn’t show anything.


Also the whole truck doesn’t lose power. My radar detector stays powered- it is tied into HVAC.
But my MPG on the DIC readout always resets when the power flash hits.

 

[Gzes]

If nothing works then try air ride suspension jk do u have remote start or keyless entry? Migh be they did a pos job. My tblazer had a keyless entry installed and It ***** with my locks. It was even done by supposed experts at audio Souce. Never will go there again

 

[beav626]

I do have. Remote start but this started before the install of that.

 

[M3PO]

If nothing works then try air ride suspension jk do u have remote start or keyless entry? Migh be they did a pos job. My tblazer had a keyless entry installed and It ***** with my locks. It was even done by supposed experts at audio Souce. Never will go there again

Good call! My friend did my install on the Tahoe I had before, he was a pro and did clean work, but something still went wrong with the system and the truck was operating in some sort of "safe mode" it would only drive in 2nd gear until fixed. Never again for me.

 

[beav626]

Getting gas yesterday and I looked under the hood for some reason... Saw a broken ground cable. The one going from the hood to the firewall. I know it is not important but I removed it hen I got home and I switched keys...To the older key I was using earlier in the summer. (I replaced the key when I got a new fob)

I drove around yesterday and just got back from a little road trip on Oklahoma bumpy Highway I-40.

She didn't blink once.

could it be that the new key that I had been using had a bad resistor in the key. It doesn't make sense to me because that system is turned off once the car is started.

Anyways my fingers are crossed that my problem is gone.

 

[Gzes]

Is the key chipped? If so the. Yea that could be your problem but you said u had a broken ground cable so did u switch it or fix it?

 

[beav626]

Is the key chipped? If so the. Yea that could be your problem but you said u had a broken ground cable so did u switch it or fix it?

It is a transponder key, I believe all 200 and up GM SUV's are Transponder keys. No Chip in the metal but in the black housing.

As far as that ground. I just removed it.