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2004 Pontiac Grand Am Won't Start

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New User

Dec 15, 2016, 5:38 PM

Post #1 of 2 (858 views)
2004 Pontiac Grand Am Won't Start Sign In

Hello, I am new here. My Name is Scott.

I am having trouble with my 2004 Pontiac Grand Am. Over the summer I had an issue where on very Hot days once the engine was hot the car would start very hard. I could start it fine when it was still cool, but if I went into a place and came back out to start it again, sometimes I would have to try more than once. And when it did start it would idle higher than usual for a few seconds then go back to normal. My neighbor suggested just changing the air filter, so i did. Still had the problem from time to time.

Fast Forward to now, the other night I got home from work and got into my parking spot and my car kind of rumbled and the engine died. I hadn't had that happen before so I tried to start the car again, it wouldn't start. I have a check engine light on so I bought a cheap OBD2 reader. It said there where 3 fault and one Pend, codes I got where P0131, P0128, and P0442. The last one said P0131 P. Now from what I have researched P0131 can mean a faulty o2 Sensor or a short in the wiring to the o2 sensor. P0128 has something to do with coolant temp. And P0442 is a loose gas cap.

What I am wondering is would any of these stop the engine from starting? I am thinking about just replacing the o2 sensor without any further diagnostics since it is a cheap part and I feel like a faulty o2 sensor would cause the symptoms I have experienced. Also How do I know which o2 Sensor it is? Any other advice would be greatly appreciated.

It is a 2004, Pontiac Grand Am (SE2 I think, not sure how to tell.)
it has about 208,000 miles on it.

Thank You

(This post was edited by ScottYpma on Dec 15, 2016, 5:44 PM)

Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 15, 2016, 6:45 PM

Post #2 of 2 (843 views)
Re: 2004 Pontiac Grand Am Won't Start Sign In

Those codes shouldn't be causing a no start. You should follow the advice on this page. Post your results. Just because a code has a description of a part doesn't necessary mean that part is faulty. It should be tested to prove if it is faulty or not.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Dec 15, 2016, 6:47 PM)

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