Keeps running
Thread Starter
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Laughing Gas
Joined: Sep 2004
Posts: 1,169
Likes: 4
From: Whitby, Ontario, Canada
Keeps running
I know these trucks are supposed to run forever but this morning things got ridiculous. 
I got to work a little late, parked the truck, removed the key and jumped out. The truck was still running! Not "run-on" but idling just fine. I tried the ignition key back and forth a few times and no luck. I did notice that the tach is noticably more eratic with the ignition turned off but other than that it runs fine and rev's good too.
Like I said I was late so I just pulled the coil wire and will deal with it tonite. Hopefully the battery is not draining?
The only thing I can think of that would cause this is the ignition switch itself. Has anyone else had this happen or is there something else I should check?
thanx
'76 302 2wd
I got to work a little late, parked the truck, removed the key and jumped out. The truck was still running! Not "run-on" but idling just fine. I tried the ignition key back and forth a few times and no luck. I did notice that the tach is noticably more eratic with the ignition turned off but other than that it runs fine and rev's good too.
Like I said I was late so I just pulled the coil wire and will deal with it tonite. Hopefully the battery is not draining?
The only thing I can think of that would cause this is the ignition switch itself. Has anyone else had this happen or is there something else I should check?
thanx
'76 302 2wd
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
Yes, the battery probably is draining, may want to disconnect the battery. Could be a bad ignition switch or bad starter solinoid. Pull the small wire off the 'I' terminal on the solinoid and check if the wire or terminal have power. Let us know what you find.
Thread Starter
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Laughing Gas
Joined: Sep 2004
Posts: 1,169
Likes: 4
From: Whitby, Ontario, Canada
I went out and tried it again and could not get it act up. I started it 6 times and it shut off properly every time.
I hate intermitten problems like this, hard to fix if it won't stay broken! Also makes me think that it might be related to heat. This likely rules out the ignition switch. You maybe right with the started solenoid or maybe the ign. module?
I'll have to see if it acts up again after a longer drive.
I hate intermitten problems like this, hard to fix if it won't stay broken! Also makes me think that it might be related to heat. This likely rules out the ignition switch. You maybe right with the started solenoid or maybe the ign. module?
I'll have to see if it acts up again after a longer drive.
Thread Starter
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Laughing Gas
Joined: Sep 2004
Posts: 1,169
Likes: 4
From: Whitby, Ontario, Canada
Well two months later and the truck did it again. This time it was nice enough to keep running when I parked it in my own driveway.
4X4Dump was right on, it is the starter solenoid/relay. I took a test lite and found that The "I" terminal had voltage on it with the wire pulled off. A gentle tap(ok,.. maybe not so gentle
) to the top of the solenoid and everything went back to normal.
Now I know I have two or three of these in the garage somewhere should take me most of the weekend to find it but it's about time I clean out the garage anyways! Thanks for the help.
4X4Dump was right on, it is the starter solenoid/relay. I took a test lite and found that The "I" terminal had voltage on it with the wire pulled off. A gentle tap(ok,.. maybe not so gentle
) to the top of the solenoid and everything went back to normal.Now I know I have two or three of these in the garage somewhere should take me most of the weekend to find it but it's about time I clean out the garage anyways! Thanks for the help.
