i need help
Thread Starter
4th Gear
Joined: Mar 2014
Posts: 4
Likes: 0
i need help
I have a 85 corvette it starts but does not run I have done everything I can think of changed the distributor the cap wires rotor and mass air flow new prong tps iaic cleaned fuse box changed all fuses and new alternator thermostat cleaned throttle body fuel pump and it's relay knock sensor fuel filter still no run not sure where to go now thank you for your time John
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Burning Brakes
Joined: May 2011
Posts: 838
Likes: 2
From: Louisville Ky
I have a 85 corvette it starts but does not run I have done everything I can think of changed the distributor the cap wires rotor and mass air flow new prong tps iaic cleaned fuse box changed all fuses and new alternator thermostat cleaned throttle body fuel pump and it's relay knock sensor fuel filter still no run not sure where to go now thank you for your time John
starts and runs how long? do you have a strong blue spark during cranking?
was it timed with the new distributor? with front balancer at TDC for #1, which direction is the rotor pointing, assuming the distributor is a clock face lying flat with the 12 facing the rear of the car? are you sure the wires are installed in correct order?
do you have fuel pressure at the rails? have you checked the injectors for ohms? have you checked for injectors firing -the blinking light test?
even before that, do you have a factory service manual?
Thread Starter
4th Gear
Joined: Mar 2014
Posts: 4
Likes: 0
probably everything you have done was a waste of time. the first thing you have to do is troubleshooting.
starts and runs how long? do you have a strong blue spark during cranking?
was it timed with the new distributor? with front balancer at TDC for #1, which direction is the rotor pointing, assuming the distributor is a clock face lying flat with the 12 facing the rear of the car? are you sure the wires are installed in correct order?
do you have fuel pressure at the rails? have you checked the injectors for ohms? have you checked for injectors firing -the blinking light test?
even before that, do you have a factory service manual?
starts and runs how long? do you have a strong blue spark during cranking?
was it timed with the new distributor? with front balancer at TDC for #1, which direction is the rotor pointing, assuming the distributor is a clock face lying flat with the 12 facing the rear of the car? are you sure the wires are installed in correct order?
do you have fuel pressure at the rails? have you checked the injectors for ohms? have you checked for injectors firing -the blinking light test?
even before that, do you have a factory service manual?
Burning Brakes
Joined: May 2011
Posts: 838
Likes: 2
From: Louisville Ky
I do have have spark and yes the distributor was installed right and was timed in with a light when it disides to run the other things I replaced needed to.be replaced like the altanater and the thermostat. It's a weird deal it run when it feels like and shuts down when it want a couple tow calls to bring it back home
so, it runs ok, but shuts itself down. was the coil replaced, and ignition module? if you are prepared, you should have a means of checking for spark when it shuts down.
does it stop suddenly, or shudder and cough? misses? stops at idle, or while under power? the more descriptive you can be the more likely you are to fix it. have you checked a couple plugs for fouling?
ohm the injectors as he suggested, although intermittents are not usually a bad injector.' code 12 is not a concern.
Thread Starter
4th Gear
Joined: Mar 2014
Posts: 4
Likes: 0
the definition of the problem is better, John. you realize that we the reader have no idea of what anyone's expertise is.
so, it runs ok, but shuts itself down. was the coil replaced, and ignition module? if you are prepared, you should have a means of checking for spark when it shuts down.
does it stop suddenly, or shudder and cough? misses? stops at idle, or while under power? the more descriptive you can be the more likely you are to fix it. have you checked a couple plugs for fouling?
ohm the injectors as he suggested, although intermittents are not usually a bad injector.' code 12 is not a concern.
so, it runs ok, but shuts itself down. was the coil replaced, and ignition module? if you are prepared, you should have a means of checking for spark when it shuts down.
does it stop suddenly, or shudder and cough? misses? stops at idle, or while under power? the more descriptive you can be the more likely you are to fix it. have you checked a couple plugs for fouling?
ohm the injectors as he suggested, although intermittents are not usually a bad injector.' code 12 is not a concern.
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