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Engine shuts off when car has been driven more than an hour

Tiny
CSIGMON95
  • MEMBER
  • 2006 PONTIAC TORRENT
  • 3.4L
  • V6
  • 4WD
  • AUTOMATIC
  • 178,000 MILES
Can only be driven for an hour and a half to two hours before shuttering and shutting off. Then it won't restart unless you wait a few hours. After waiting it starts right back up and again can only be driven the same time frame before shutting off out once more.
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Sunday, June 23rd, 2019 AT 5:58 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

When it does not start, you need to test for fuel pressure and spark to see which area has the issue.

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Try spraying some starter fluid into the air filter and see if it starts and stall. That will tell us if it is fuel delivery or spark.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Roy
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Sunday, June 23rd, 2019 AT 6:12 AM
Tiny
CSIGMON95
  • MEMBER
  • 2 POSTS
Also may be worth nothing that I've replaced all spark plugs, 3 O2 sensors, and the MAF sensor. Still having the issue.
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Sunday, June 23rd, 2019 AT 6:14 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Got it.

All of them would have no effect on the issue.

Roy
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Sunday, June 23rd, 2019 AT 6:19 AM

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