This truck dies suddenly while driving. i have new ignition coil, cap, rotor, fuel pump, TBI. for a while i would disconnect the coil wire from the distributor cap, crank a few times, reconnect the wire and it fires right up. now i get no spark. when the engine cools for a couple of hours it will start but when engine warms back up it dies.
-Sounds like bad igniter. But make sure check fuel pressure as well.
Good luck
Mai
SOURCE: s10 pickup after warming up truck starts missing
You might have computer problems.
Does the check engine light come on when it starts to miss?
SOURCE: 1988 Chevrolet K3500, Have replaced distributor,
Pick up a spark tester (it'll cost under 15$) . After installing the tester on one of the 2 rear right or left bank spark plugs, have someone turn the engine over and check for spark. If you have no spark, you could have either a broken timing chain or a broken cam-shaft. The only other minor item you didn't mention with regard to the ignition system was to make sure you have a good hot power source to your distributor. If these things don't work, it might be time to check that the carburetor or throttle body fuel injection (as applicable) is providing fuel.
SOURCE: no fuel no spark 1990 k5 blazer 350
Take off the distributor cap. Check the star wheel that is splined to the distributor shaft that the pick-up coil uses. Make sure this wheel is not loose on the distributor shaft. It is right above the pick-up. If it is loose, replace the distributor. This is a common problem. If it needs one, all the part stores stock the distributor.
SOURCE: 1990 K5 Blazer DIED(Electrical?)?
There may be no injector pulse if the computor does not see a RPM signal.
There will be no spark if the ignition module does not see a dist pulse from the dist pickup.......a RPM signal.
Because you do not have both ......I would suggest to check/change the dist pick up.
Follow the wires from the ignition module inside the dist to the pickup which is also inside the dist.
If it is just a bad dist pickup....keep all your old parts as good spares.
Also...is the dist turning? to provide a RPM signal?
You will have to remove the dist to change the pick-up.....mark your timing locations......"rotor position" and "dist body location"before removal.
A quick test before installing the "repaired dist" .....plug it in the the truck wiring and turn on the key....DO NOT CRANK THE ENGINE OR YOU WILL LOSE YOUR DIST ROTOR CORRECT POSITION......as you spin the dist by hand .....the injectors should spray.
SOURCE: 1996 chevy truck 305 new rotor and distributor cap
did you test or replace the crankshaft position sensor? That is where the spark signal begins.
313 views
Usually answered in minutes!
×