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Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 34486
Experience:  35 years experience with ASE Certs
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I did an oil pan gasket .now car 't have no park selector

Customer Question

I did an oil pan gasket .now car don't have no park selector indicator to start
JA: Is this your first time dealing with this issue? What size is your engine?
Customer: yes 3.5
JA: What is the model/year of your Chevy?
Customer: 2007 impala
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: are you a person or a computer
JA: No. I'm the Chevy Mechanic's Assistant.
Customer: ok yes
JA: Anything else you think the mechanic should know?
Customer: I check all fuses wires grounds
Submitted: 8 months ago.
Category: Chevy
Customer: replied 8 months ago.
battery was removed for safety.
Expert:  Ron replied 8 months ago.

Hello and thank you for your question,

When you say you have no selector are you saying the Selector is blank?

Dose the engine not crank?

Customer: replied 8 months ago.
Customer: replied 8 months ago.
also no power to windows or signals
Expert:  Ron replied 8 months ago.

So this all started after the pan gasket was replaced?

Have you scanned the computer system for any fault codes?

Customer: replied 8 months ago.
the selector don't show if it on anything u0140 no body control comunication
Customer: replied 8 months ago.
we didn't do any thing for the first fee yet
Expert:  Ron replied 8 months ago.

There is one Ground that can affect these systems that you need to check. The ground is the G111 that connects to the bell hosing just above the starter. Check it and se if its clean and tight . Let me know what you find and we can work from there if need be.

Customer: replied 8 months ago.
already did that
Expert:  Ron replied 8 months ago.

So I assume its in place and tight correct. Is the PRNDL blank?

Customer: replied 8 months ago.
just the numbers and letters not the circle around the numbers or letters
Expert:  Ron replied 8 months ago.

Okay lets start with checking this system first. See the steps in the link below, Run these steps and let me know the results.

Customer: replied 8 months ago.
check good
Customer: replied 8 months ago.
also I have no brake or signals
Customer: replied 8 months ago.
i have to step out i don't know how this works but i have to go .we didn't get any where at all
Expert:  Ron replied 8 months ago.

The one other thing that all of these system share is the BCM, was it disturbed at all during this repair?

Customer: replied 8 months ago.
Nothing was moved
Customer: replied 8 months ago.
Do you know of any problems with the body computer having issues on this car
Expert:  Ron replied 8 months ago.

In most cases if the BCM has a problem it will set a fault code.Unfortunately I suspect something is loose here but I do not think Im going to be able to fix this from here. I will open the post back up for you and perhaps someone else may have something to offer.

Customer: replied 8 months ago.
Customer: replied 8 months ago.
Customer: replied 8 months ago.