It fires sometime then it will quit fireing sometims

Tiny
BDAVIDSON
  • MEMBER
  • 1996 TOYOTA CAMRY
  • 288,881 MILES
It will crank and run for about 30 seconds then die. When try to crank it back up it may fire some then quit firing some. It will turn over but its not firing at times when it does fire then it cranks it will crank all the time till it sits for eight hours.
Thursday, September 5th, 2013 AT 4:46 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
When it will not fire, check the fuel pump pressure to make sure it is within the manufacturer's specs. Also, check to see if there is spark to the plugs.

Better and easier yet. When it won't fire, see if it will start using starting fluid. If it does, then there is a fuel related issue. If it doesn't, then chances are you are not getting spark to the plugs.

Let me know what you find.

Joe
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Monday, February 22nd, 2021 AT 9:53 AM
Tiny
BDAVIDSON
  • MEMBER
  • 4 POSTS
There is no way to check the fuel pressure. When its not firing its not coming from the coil. I change the coil and it still does the same. I also change the crank shaft sensor out.
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Monday, February 22nd, 2021 AT 9:53 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Are you saying there is no spark? And fuel pump pressure can be checked at the fuel filter if there is no schrader valve on the fuel rail.

Let me know.
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Monday, February 22nd, 2021 AT 9:53 AM
Tiny
BDAVIDSON
  • MEMBER
  • 4 POSTS
There some spark at times and other times there none at all. The fuel pressure can not be checked there is no shredder valve on the fuel rail.
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Monday, February 22nd, 2021 AT 9:53 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
It sounds like you either have a bad coil or a bad crank sensor. As far as fuel pressure, you need to get an adapter for the fuel filter to check pressure. However, it sounds like spark is the issue.
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Monday, February 22nd, 2021 AT 9:53 AM
Tiny
BDAVIDSON
  • MEMBER
  • 4 POSTS
It was the crankshaft sensor. Thank you this site rocks.
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Monday, February 22nd, 2021 AT 9:53 AM

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