Rough starting Max. during cold weather

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paulf - 20 Sep 2004 15:07 GMT

My 97 Maxima is having a hard time turning over during cold mornings.
It also makes a strange noise and the tach goes from ~1500 RPMs to
zero and then jumps back up to normal, around 700 - 1000 RPMS. This
condition only happens when the mornings are cool to cold. After the
car has been running or when the outside temp. rises the Max. starts
and runs without any issues.

Any thoughts??

TIA,
Paul

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David Geesaman - 20 Sep 2004 15:31 GMT

Coolant Temperature Sensor is one possibility. Easy $25 fix, probably worth
doing regardless if the car has >100k.

Dave

> My 97 Maxima is having a hard time turning over during cold mornings.
> It also makes a strange noise and the tach goes from ~1500 RPMs to
[quoted text clipped - 7 lines]
> TIA,
> Paul

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Codifus - 20 Sep 2004 20:18 GMT

> Coolant Temperature Sensor is one possibility. Easy $25 fix, probably worth
> doing regardless if the car has >100k.
[quoted text clipped - 12 lines]
>>TIA,
>>Paul

That, and give your throttle body a good cleaning.

CD

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paulf - 21 Sep 2004 12:44 GMT

> > Coolant Temperature Sensor is one possibility. Easy $25 fix, probably worth
> > doing regardless if the car has >100k.
[quoted text clipped - 16 lines]
>
> CD

Thanks for the responses.....Could someone please point me to the
coolant temp. sensor on a 97 Maxima? I think this will be replaced
this weekend along with the O2 sensors.

Paul

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David Geesaman - 21 Sep 2004 15:00 GMT

"paulf" <flansp78@hotmail.com> wrote in message

> Thanks for the responses.....Could someone please point me to the
> coolant temp. sensor on a 97 Maxima? I think this will be replaced
> this weekend along with the O2 sensors.
>
> Paul

Offhand, I recall it being on the driver's side of the main plenum,
under a couple of hoses and tapped into the top of the main radiator pipe.
It points downward. Just aft of the sensor a big radiator hose leads to the
engine. I needed to remove a few vacuum hoses above it to change it, but it
didn't take long. Just do it on a cold engine since you're opening into a
coolant passage, but there is no need to drain it the system.
I think I took a photo of it, I will post it on maxima.org and point you
there if I can find the pic.

Dave

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