84 toy P/U carb'd no spark.. bought new parts.. still no spark
Ugh, so I'm totally stumped.. I just can't get any spark.
I'll try to give all possible information. Wife calls me, saying that the truck stalled on her just a few blocks from the house. Has been running perfectly fine after putting in a new carb a few months ago. At first I was like, perfect time to go ahead and do some tune up stuff... and hopefully it'll just be spark plug wires or something. Yeah, not so much. Bottom line will crank, it just won't start due to no spark. 1. New distributor 2. New cap & rotor 3. New spark plugs & gapped correctly 4. New spark plug wires 5. New coil 6. New Ignitor 7. New GM ignitor/module/etc for swap out setup 8. Under dash fuses are all good 9. Under hood fuses are all good 10. Pick up coil in distributor is properly gapped 11. Have 12v with key on at plug to ignitor 12. Have 12v with key on at Coil 13. Have proper Ohms on new distributor 14. Rotor does spin when cranked 15. Checked good for continuity on the cable (pink/white) from dist to coil 16. Toyota and GM coil both test good 17. Fuel does get to the carb 18. Starting spray has been tried, pointless ... i think that's it. Oh and it's an 84 p/u long bed, carb'd, 165k original miles. 2 month old still shiny carb. Was running great till it just stalled out. What am I missing? |
How about timing?
|
Timing was fine before it broke down. The engine is the original as far as I know, truck sat for about 5 yrs until I bought it.
Timing was set back when the carb was replaced. I wasn't aware that I can check timing if the engine won't start. What are you asking/suggesting? |
I see you have 12V at igniter and coil with the key on, but what about with engine cranking?
|
Originally Posted by Thenewguy16
(Post 52186225)
Timing was fine before it broke down. The engine is the original as far as I know, truck sat for about 5 yrs until I bought it.
Timing was set back when the carb was replaced. I wasn't aware that I can check timing if the engine won't start. What are you asking/suggesting? Good luck |
Originally Posted by rokblok
(Post 52186372)
I see you have 12V at igniter and coil with the key on, but what about with engine cranking?
|
Originally Posted by FrankTorres
(Post 52186567)
...your chain may have jumped a few teeth, it happens and something that is easily verified. You would need to remove your valve cover to verify the cam timing marks are lined up to the crank at TDC.
Good luck |
Start making sure all your fuses have power going to them, just had a weird issue replaced a lot of stuff trying to get spark, turned out no power to my efi fuse, not your exact problem I know but it could be similar if nothing else works! Good luck
|
Finally found time to work on the truck and try the ideas offered. Still no luck. In reply to suggestions:
1. Chain is fine, verified TDC 2. Wasn't able to find any wires/fuses that didn't have appropriate power to it I'm not used to getting my butt kicked like this. Something I hadn't mentioned earlier (probably not relevant) is that this is a Calif Emission setup. I am tempted to go out and buy a new Emission Control Module. I've bought new parts of everything else.. ugh. I was really hoping that the timing theory suggested by Frank would have fixed it. |
All times are GMT -8. The time now is 11:51 PM. |
© 2024 MH Sub I, LLC dba Internet Brands