Engine cranks but wont catch

Tiny
ROCKY9395
  • MEMBER
  • 1996 OLDSMOBILE CUTLASS
  • 3.1L
  • V6
  • FWD
  • AUTOMATIC
  • 70,000 MILES
Just bought the car. It needed a jump to start and would run fine. Replaced with a new battery, twice, with 650cca. Now it cranks but will not catch, even with a jump. A couple of times it almost caught but that was it.
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Sunday, August 7th, 2016 AT 9:45 AM

7 Replies

Tiny
HMAC300
  • EXPERT
Try resetting security system or another key. Your diode may be worn on that one. A new one wont work as it will need to be programmed to your car.
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Sunday, August 7th, 2016 AT 12:06 PM
Tiny
ROCKY9395
  • MEMBER
There is no security system and it is a standard ignition key. It started fine the first time, without a jump. I do not think it is the key. It almost fully started after a plug was pulled out and plugged back in to the air filter cover. Maybe a compression issue?
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Monday, August 8th, 2016 AT 1:28 PM
Tiny
HMAC300
  • EXPERT
Well there is a security system on it through the key even though it does not look like it. Have it scanned for codes by a mechanic.
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Monday, August 8th, 2016 AT 3:16 PM
Tiny
KEN
  • ADMIN
Sometimes when you put a new battery in it can blow a fuse, also did you happen to jump it backwards? this will fry the computer, here is a guide so you can do some more checking

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

Check the fuel pressure as well. The pump may have went out.

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

Let us know what yo find

Best, Ken

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Monday, August 8th, 2016 AT 5:35 PM
Tiny
ROCKY9395
  • MEMBER
Ok thx I'll give these a try!
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Monday, August 8th, 2016 AT 5:51 PM
Tiny
ROCKY9395
  • MEMBER
Tried the starter fluid. The car started for about 20 seconds then puttered out, wouldn't restart.
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Monday, August 15th, 2016 AT 2:20 PM
Tiny
KEN
  • ADMIN
Okay, let's try check for injector pulse while it is not starting

here is a a guide that will help you

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Let me know what you find

Best, Ken
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Monday, August 15th, 2016 AT 2:35 PM

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