Replaced most of the sensors will it run if it is 180 degrees out?
SOURCE: 1989 s10 blazer will not idle
check timing with timing light , sounds like its out of time , and make sure that the timing marks are not off by one tooth
SOURCE: 1985 Corvette, starts runs rough then dies
I have a 85 coupe,the pumps are notorous for going out.Best bet is empty the whole tank.the pump .Is easy to pull its under the filler door.1 make sure its not your security system shutting off
your injectors .2 turn key in on poss and open gas door you should hear the motor.If not
disconnect batt and remove.be car e you dont lose the screen.once out dry off and hook up to any batt to check.there only 30 bucks but make sure you ground it out right and dont turn it on in a dry tank ,you will burn it out.
SOURCE: Rough idel
OK, Im sensing many issues here. I will list the most important check points below that you will need to inspect thoroughly. I recommend running a code check as well if possible. the check points are listed as follows..
Check Points---
1. Inspect the EGR Valve-- A Improperly Functioning or Faulty EGR Valve will contribute to misfiring and instant death of the engine.
2. Inspect all Fuel injectors-- Dirty or Worn Fuel Injectors can cause rough idles as well. inspect accordingly.
3. Inspect the Idle Air Control Valve-- Damaged, Loose, or Faulty Idle Air Control Valves will cause rough idle.
4. Inspect the idle speed actuator-- It could be loose or faulty.
5. Check the throttle position sensor. this is a know problem spot when the idle is erratic or unstable.
6. Make sure you are running a clean air filter as well. this is a simple check that may fix your idle issue as well.
7. Inspect the PCV Valve-- This device may be clogged or damages. make sure the hose is not bent.
8. If there is a Carb present, i would run a thorough check on all lines and choke assembly as well.
9. Inspect the valve assembly for Burned, Worn, or Sticking Exhaust Valves. this can cause back firing and rough idle as well.
10. I also recommend checking the timing chain for slippage or worn timing gears as well. this can cause your symptoms.
11. INspect the fuel pump for faults.
12. If you have run through the above list to this point and still have not seen anything unusual, i will now recommend pulling the cam to check for worn Camshaft Lobes. this will screw up valve timing and affect the engines idle greatly.
13. if a distributor is present, i would check the ignition points for worn or incorrectly set points.
This concludes the check list. you will find the problem in one or all of the areas stated above.
Please rate and god bless:)
SOURCE: 92 CAMARO Z28 5.7 TPI CRANKS IDLES, GOES DEAD
Have you tried to pull any DTC codes. Here is a link for you so you can pull some codes, but you may have a bad Ignition Control Module (ICM) it's around $40.00 at Auto Zone and they can give you the step by step instruction to replacing it with common tools. The ICM is common to go bad after a few years due to time and corrosion. It's location is under the rotor in the distributor, as it heats up if fails or any changes in the engine speed. Check the wires to make sure there are no damages. Keep me posted be glad the help. http://www.troublecodes.net/GM/
SOURCE: 1989 Chevrolet C1500 with 5.7L V-8. Engine dies
fuel pump is working but when accelerating it doesnt pump enough fuel up to the engine then it will fall on its face if it is a electric pump you may have to drop the tank if it is inside and replace it if it is on the engine replace it thats what is exactly wrong with it
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