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Engine shut off at a stoplight

Tiny
ROBERT GOSS
  • MEMBER
  • 1997 LEXUS ES 300
  • 172,000 MILES
Towed it home I found that the pump was not getting power. I went straight to the battery the pump came on. When I crank it over it turns faster than normal making me think it might be the timing belt it was changed less than 40,000 miles ago. I took a peek inside. The belt is still going around the pulley. I've checked all fuses. Also switch to relays still nothing.
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Thursday, June 9th, 2022 AT 1:43 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If this engine cranks faster than normal then that is a sign of no or low compression.

So, let's start right there.

Here is a guide that will help with checking the compression but let's check it on a couple cylinders just to be sure. However, if the first one you check is zero then we know what the issue is.

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/symptoms-of-low-compression

Just because the belt is still on the pulley doesn't mean that it isn't stripped or there is a pulley issue.

So, let's start with this and go from there.

Thanks
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Friday, June 10th, 2022 AT 7:37 PM

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