2005 Pontiac Montana hard start when hot
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Gotcha! Thanks for relearn!
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Not a problem. I was convinced there was a FPR. I looked around, nope, can't find it. After steeping back and looking at the bigger picture I realized this is a returnless fuel system. Just has the one fuel line in, and that'* it. Also realized I don't care for the engine much. The injectors are under the intake manifold. As well as the fuel rail.
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That'* one of the things I was thinking. That'* why I mentioned the TSB talking about the HB not being seated. Made me think the crank sensor might not be picking up right. Might have to see if I can toss the oscilloscope on it.
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Thanks, I didn't see a pattern before but the short drive, heat soak angle fits what I have been seeing. I'll probably get it taken care of tomorrow. Will report back as soon as I can say for sure that it was or wasn't the problem. I did notice that it takes longer for it to recover as the outside temps go up. No problem during the winter months and I have experienced this on and off for at least a couple of years. In hindsight it also cranks a little longer before it starts on warmer days lately where normally it will start as soon as the key is turned.