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Why wont it start after worms up?

Tiny
NESTOR327
  • MEMBER
  • 1991 ACURA INTEGRA
  • 151 MILES
Hello I have a 1991 acura integra gs and I am having a problem with it staying on. It runs for a while then it starts studdering and eventually dies out and wont start till it cools down I am unable to get any codes out of it. I changed spark plugs ignition control moduel and ignition rotor, and main relay was rz-0067 now rz-0063 also has spark at wires any idea what could be causing this?
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Monday, August 6th, 2012 AT 3:22 AM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You need to find out what is missing when it fails to start.

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

The above link shows you what to look for.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
CAROLINACARCONNECTION
  • MECHANIC
  • 66 POSTS
Sounds like the fuel pump could be locking up. When the car quits running check for fuel pressure.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
NESTOR327
  • MEMBER
  • 3 POSTS
I checked the fuel by loosening the fuel filter and I had fuel coming up to the engine. I will check the pressure and see.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
CAROLINACARCONNECTION
  • MECHANIC
  • 66 POSTS
Did you check for fuel during a no start condition?
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
NESTOR327
  • MEMBER
  • 3 POSTS
Yes, I checked it during the no start condition. Once its started and has been on for about ten or fifteen minutes it starts sputtering, but it is not misfiring that is what gets me.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
CAROLINACARCONNECTION
  • MECHANIC
  • 66 POSTS
Have you checked the fuel pressure yet? Were the parts you replaced new or used?
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
When engine fails to start, turn ignition switch on and monitor to see if the MIL goes off after two seconds.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
SRISHER
  • MEMBER
  • 1 POST
I had a similar problem once, turned out to be a small crack in the distributor cap. When the engine heated up, the plastic cap would expand and cause the points to become misaligned and the it would sputter to a stop. Once the engine cooled, the cap returned to its original shape and it would start right back up and run until it got hot again.
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Tuesday, January 24th, 2017 AT 7:05 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
The points are mounted to a plate in the distributor itself, not on the cap. The crack in the cap was causing arcing.

Like the other experts here, my money is on a fuel pressure issue. You need to actually check the pressure at the regulator. Not loosen a fitting and see if gas comes out. You need to see what sort of pressure is being developed when cold and when hot. If the pressure is too low, when the engine compartment warms up, the fuel in the lines will boil and cause it to sputter and shut off.
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Tuesday, January 24th, 2017 AT 7:05 PM

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