greggyb

I was wondering if the fuse that controls ignition is bad. Can you tell me which fuse this is and where it is?

Gevo

Someone with a 22R engine should chime in here, I don't know if it's the same as mine. If it is, look at the fuse box above the passenger side wheel well under the hood.

This is probably why you have no spark. Could be fuse, could be wiring. Since it was intermittent, it is most likely not the fuse... bad connection or something...

greggyb

yep it is the wiring. I ran direct wires to the ignitor/coil from the battery and the truck fired right up. so I just have to figure out where the wiring/fuse is bad. Do you know if it would hurt the truck to drive it direct wired like I described just until I figure it out. I need to drive to town to get some stuff. I mean I know there will be no fuse for a few days, but is there any other risk of burning out my coil, ignitor or anything else?

greggyb

I'm think of just leaving the ignitor/coil direct wired to the battery but adding an inline fuse and a simple on/off toggle switch to control power to the ignitor/coil. What do you think? Will this damage anything? I don't care how it looks. I just haul firewood with this truck.

Gevo

well as long as it's fused. Don't put a 5 megawatt fuse on there... you should be ok.. but the stock wires dangling somewhere shorting shouldn't be ignored ..

glad it worked out.

greggyb

Do you know what size fuse I should use? I think the ignition fuse on the kick panel is a 7.5. Is that what I should use? Yeah I really needed to get this truck running. I was so happy when it fired up. I've got another truck I'll be talking about shortly. A 94 22re...

Gevo

i DON'T KNOW, BUT IF THE ignition fuse is 7.5, then no more than that.

22rcartwright

I know this is an old thread, but hopefully this will help someone in the future. I have an 85 22r with no spark. With the key in the on position, I disconnected the ignition module from the coil then used a digital multimeter to find 11.9volts. Hooked back up then checked from the coil to nearest ground and found .07 volts. Ordered Standard Motor Products UF12 for around $34 and now have 12v volts.

Russell D. Gill

I appreciate 22rCartwright's follow-up on this post just a month ago. All of the posts from 3 years or so ago are likewise invaluable as I search for the magic spark on my 22r. Mine is a 1985 base pickup that I restored a couple of years ago. I drove one just like it in high school and college, and now with a bit of mid-life crisis coming over me, I found one in pretty good shape and snapped it up as soon as I could. I've had it painted, and then did a lot of the interior work myself. I pulled a bench seat out of an 86 at a junkyard, had it upholstered, and then exchanged the 4 runner bucket seats with it. I'm trying to get it back to looking as my original truck did (which I stupidly sold a week after graduation so I could go into debt for 60 months for a Chevrolet Lumina - one dumb decision begat another). But, for nearly 10 months its been dead as we cannot get the engine to turn over. My shade-tree mechanic brothers have done a lot of work to it, but still nothing. However, I don't recall them saying anything about putting in a new wiring harness, or confirming the volts going to the coil. So I'lm going to bring that up to them, and hopefully achieve similar success. I'll report back to this thread on what happens.