I find the other EVTM diagrams easier to read than the large ones you posted. Your "start and glowplug control" is part of the EVTM. Here is a link to the whole 1986 EVTM diagram set. There are a few that are diesel only, and the rest of them sometimes have notes with diesel differences...
To the original thread starter. Here is a picture that shows the switch. The switch in the lower part of the picture is the brake switch, but up in the middle it shows the starter interlock.
I have to drive it everyday to work. What is really bad is I live right near the base on the far side, so every morning whatever vehicle I take, it's a cold start, go down the short driveway, and then a long hard pull on a cold engine till I get to the top. I try to be easy on them but what do...
Is there a reason you want it to work? After a couple of episodes the past couple of years I am finding I do not like them.
1st episode. I was messing with the rear tank, and it had the broken shower head inside it. I ran out of fuel right in a bad spot on the mountain and it's a busy road...
Most of them do not have CDL's. So their combined weight ratings tags, trailer and truck, cannot exceed 26,000. That can be difficult, that relegates them to light bulky or smaller not very heavy loads. It's very easy to cross the 26,000 line. They can get the trailer manufacturer to put any...
It puts a lot of strain on the frame shock mounts. And they do give a stiff ride when aired up. Here is a set that is supposed to fit.
https://www.amazon.com/F-250-F-150-Monroe-Max-Air-Shocks/dp/B081B3KGS7
It's my impression watching trucking videos lately, that hot shotting as a whole has been declining. Good thing you did not get into it. And the cops really like to hassle you more than the large trucks.
If you have separate amber turns, then ignore my post. Your truck has been re-wired, no one is going to be able to help you without knowing how the ambulance people wired it up. Did they simply cut the original green brake pedal switch wire going to the turn switch and run a new wire from the...
The problem with the brake lights, they are embedded and use the same wiring and bulbs as the rear turns. So when the brake lights do not work, do the rear signals both sides work? If they do, that means the bulbs and the wiring going to the rear are good. These all lead up to the turnsignal...
It only burnt up in the back? That should not be too hard to repair. I am going to redo my wiring back there anyway and mine never caught fire. I was going to go up the frame a little ways, and splice some new wires in place. I was going to use trailer wiring and trailer wiring color codes...
I would not swap the column, I would keep your old auto column. I have no problems with using my old auto column. I took the lever off of it. And put a piece of black tape over the PRND2L indicator. As long as it's tied up it works fine. You can find a older column later if you wanted, but...
Are you going to get the frontend also? If possible, I would try and at least get the front driveshaft and the front transfer case yoke. The front driveshaft has the double cardan joint in it. My f250 had a lift on it when I bought it, and it always had a bad vibration when in 4x4. I put the...
I did a manual swap on my 89. Your 91 is like my 89, not sure if the pedals will swap. I know 1986-dwn will not swap.
I used a 89 donor. The driveshaft was different. I could have used my auto driveshaft, but the 5 speed shaft was thicker and had larger u-joints. I had to swap the yoke on...
I think you guys are way low. I seem to remember someone on here long ago did some testing and all of them together was a good bit over 100 amps, closer to 150 amps. That would explain why his 80 amp breaker is tripping.
Make sure there is plenty of fluid in the clutch master. Since you are driving it, if it's not completely dry any residual air will work it's way out. If it's a air problem you will not have hardly any resistance when you push the pedal. If you have resistance, it may simply be the clutch...
I think your assumption would be correct on the speed sensor. If the speedometer is working, then you would think the speed sensor input would be good.
On the earlier trucks, they used a sensor in the speedometer cable. Those trucks actually had two speedometer cables, a short one from the...
Update on my china pump; Something is going on with it, it sounds terrible and the truck started but quit on me. I got it started later in the day and while it runs, the pump sounds awful, very loud not a calm click click.
I need time, but I am going to pull it off and inspect it, and...
Many common places for failures. Your checks should have picked them up though. The electrical switches on the clutch pedal and the brake pedal commonly fail. And the slip rings behind the steering wheel are a common failure point.
Easiest way to make sure the brake and clutch interlocks are...
That's true, diesel would most like make a mess just like a mechanical oil pressure gauge would. Gasoline would definitely be more exciting, more of a mess.
Is anything not made in China anymore?
Think of it like gear ratios or sprockets.
Small gear or sprocket turning a large gear or sprocket has a lot of power, but has to turn many turns. So you have lots of power, but requires more travel distance.
Big gear or sprocket turning a small gear or sprocket, you lose power but you gain...
An experienced rebuilder can look at a pump and tell right away that dirty contaminated fuel has been run through it for awhile. The reason some rebuilders will not take a pump that WMO has been used in, it wears some expensive hard parts inside the pump that are normally not replaced. Most of...
Be careful and read the wording on your lifetime warranty. I have found going back to some stores, the warranty is lifetime "replacement", not lifetime "replacements". Some stores do keep track of your receipts, which is a good thing when you lose it and need a warranty, but a bad thing when...
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