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Dan
Dan, Technician
Category: Pontiac
Satisfied Customers: 24410
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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2007 Pontiac Montana 3.9 has intermittent starting issues.

Customer Question

2007 Pontiac Montana 3.9 has intermittent starting issues. New battery and new starter have been installed.
Submitted: 10 months ago.
Category: Pontiac
Expert:  Dan replied 10 months ago.

Hello, my name is ***** ***** I'm here to help get your problem solved.

Expert:  Dan replied 10 months ago.

During no start do you even hear a click or nothing at all? Thanks.

Customer: replied 10 months ago.
There are 2 clicks I believe. The starter has been replaced, the battery is brand new and reading fine.
Expert:  Dan replied 10 months ago.

Does starter seem to be making the clicking noise? Thanks.

Customer: replied 10 months ago.
for sure. Fuel pump is still good too
Expert:  Dan replied 10 months ago.

Monitor power on large wire going to starter and small wire when trying to start, both should maintain at least 11v. Let me know, thanks.

Customer: replied 10 months ago.
Scanner reads 12.24 all the way to the starter
Expert:  Dan replied 10 months ago.

Use a multimeter to check voltage on both wires going to starter with key in start position. Let me know, thanks.

Customer: replied 10 months ago.
Multi meter reads good
Expert:  Dan replied 10 months ago.

It shows 12.2 voltages on both wires while trying to start? That doesn't make sense.

Customer: replied 10 months ago.
Sorry it was 12.4 on the red wire.
Expert:  Dan replied 10 months ago.

Does the small wire get any voltage while trying to start?

Customer: replied 10 months ago.
The small wire that is attached to the back of the starter/solenoid the one prong connector?
Expert:  Dan replied 10 months ago.

That is correct.

Customer: replied 10 months ago.
Sorry Dan, it's going to have to wait until tomorrow. It's too dark and cold here now. I will let you know tomorrow.
Expert:  Dan replied 10 months ago.

Sounds good, keep me updated. Thanks.

Customer: replied 10 months ago.
Hi Dan, the small wire is reading 11.4.
Expert:  Dan replied 10 months ago.

So with key in start position both large wire and small wire have at least 11.4v?

Customer: replied 10 months ago.
that's right
Expert:  Dan replied 10 months ago.

I'm guessing vehicle is starting right now? If both wires have power that means engine should at least turn over.

Customer: replied 10 months ago.
No, it's still just sounds like click click
Expert:  Dan replied 10 months ago.

Make sure case of starter has good ground. If case has good ground and you are sure both wires have good power then I'd recommend replacing starter again. I'd also manually turn engine over with breaker bar so you know it is not seized. Let me know how it turns out or if you have more questions, thanks.