1989 Chevy Camaro Starting Issue

Tiny
57 HEAVEN
  • MEMBER
  • 1989 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
5.7 litre tuned port injection. Occaisionally the car will not start, cranks but wont fire. You can spray inside the intake with carb cleaner and then it will start right up. Have checked fuel pressure and even when it does this it still holds 41 psi. Have also tried replacing the mass air flow sensor and it still did it. It will do this maybe once every 10 times you start it. Not recieving any codes through the check engine light.
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Friday, July 2nd, 2010 AT 5:37 PM

3 Replies

Tiny
HMAC300
  • EXPERT
If it doesn't start once in a while and no check engine light it may be the cam or crank sensor. You sould have to check these with an ohm meter to see if the resistance is high. The computer may not be getting the signal from the crank or cam sensor and not allowing the injectors to work. Or it could be a wire grounding out someplalce too.
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Friday, July 9th, 2010 AT 2:05 PM
Tiny
MIKESHELDON
  • MEMBER
If the engine cranks and doesent start, it's highly unlikely it's a starter or solonoid especially being as it ran in october and was parked, not put away broken.

It's also highly unlikely the fuel went bad in 5 months, (Where do you people come up with this crap?) Does it go bad, Yes, usually takes a year and a half, thats proven!

Your down to fuel delivery, and or ignition. Get a spark tester, remove a plug wire from the plug, hook it up per the directions and see if you have spark (As checking for spark is easier than removing a fuel pump for testing)

If you have spark, check your fuel filter, and fuel pump. Your problem most likely lies there then.

Make sure you have a fully charged battery, it plays hell with all of this sometimes, especially in a 21 year old vehicle.
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Thursday, July 15th, 2010 AT 5:19 AM
Tiny
MIKESHELDON
  • MEMBER
Believe me, after working on small v8 chevys for 8 yrs, none of the wires to the solenoid are a grd. Wire. You have the pos. Bat. Cable, possibly 1 or 2 wires that carry bat voltage inside the vehicle to power up everything, and the solenoid "s" terminal wire which is probably purple. That only goes to the small stud on the solenoid closest to the block. There is no ground wire on an older chevy starter. Kwik check, disconnect purple wire from solenoid, have helper turn key all the way to start position, ground test light at battery, and check for bat. Voltage on that wire. If the 2 wires that originally went to big stud on starter are fusible links, you may have blown them. Identified by white plastic capsule looking things a few inches from eyelets.
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Saturday, July 17th, 2010 AT 3:48 AM

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