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To start, thanks for letting me in here. Second, its worth noting that I am mechanically inclined and do most all my own work so if you give me a test to perform, I can probably do it, but I know absolutely zip about these trucks.
I work with a charity that finds, fixes up, and donates cars to qualified applicants. We are called Rolling Start and we are based in Western North Carolina, its all volunteer labor.
Someone donated this SWEET 5 Speed 4WD '86 Turbo pickup. She's a beauty by no standard, someone put a bed on it from the next generation up. But its rust free, complete, and the interior is in pretty decent shape. It came to us under the guise that it needed a fuel pump. I put one in it, and now knowing how it works, I don't think it ever needed one. Here is what the truck is doing:
It will start, but you have to have the throttle flat on the floor and hold it there while it stumbles to life. Once its running, it'll idle for a short period but will choke out before too long. If you keep the RPMs up it'll run indefinitely. If you let it die, it probably wont start again for a while. It also smells like fuel constantly. This is an easy flooding diag, to me. But here's a weird thing. If you leave the ignition on and stick your head under the hood you can hear the injectors (multiple) firing at random. Like a spasm almost. Just clicking at random. This floods the engine instantly. I am not sure if its all the injectors firing, or just a few. What I feel certain of is injectors 3-4 are doing it. As an additional data point, there is a box on the passenger fender well with cooling fins on it. Behind the fuse box kind of. At some point in my fiddling that box was about a million degrees. Again, not familiar with these trucks at all, but with the injectors freaking out and that box being super hot, I suspect they are connected.
So the question here is, whats the deal? Why is it flooding? Why are the injectors freaking out? How can I get this truck back to goo running condition so we can sell it and put that money into more free cars for folks in need?
Question for the institution, I simply bought a 1986 Daytona Turbo that preceding proprietor said gasoline pump is horrific. The pump turned into bad, changed it and still have 50 psi on the gasoline rail. The engine turns over but still doesn’t start. It will run on a small shot of ether so ignition is ideal, it appears I’m not getting sign to the injectors. Where do I go from here?
So I have done some poking around, and it seems the box on the right inner fender I was referring to is an injector resistor. I think it would be smart to test that, but I am having trouble finding a test procedure for it.
I see lots of threads of people referring to the FSM for their procedures, and I am used to working with an FSM, but I can't seem to find it here. Is there an FSM for the early turbo trucks here? Or can someone give me the test procedure?
So I have done some poking around, and it seems the box on the right inner fender I was referring to is an injector resistor. I think it would be smart to test that, but I am having trouble finding a test procedure for it.
I see lots of threads of people referring to the FSM for their procedures, and I am used to working with an FSM, but I can't seem to find it here. Is there an FSM for the early turbo trucks here? Or can someone give me the test procedure?
if the fsm links at the top of this forum are no longer valid, you might try copying 'em and paste it into the search box at archive.org
not sure how effective that will be tho, it's disturbing to hear that the resister box is hot and the injectors are constantly firing when the engine isn't running... fwiw that resistor box is no longer available, you'd have to buy a used one to replace it.
these old trucks are notorious for having corroded injector wiring, it's buried in the engine harness and the failure mode is usually engine intermittently not running, rather than what you are seeing, so that might be a long shot... it could be a good idea tho to google the problem and see if people are reporting your symptoms.
since no one else has responded to your post, you might also try posting it on the facebook 22re owners page, they get more traffic these days than we do.
Yea I have done quite a bit of googling and haven't had much luck. I ran a bunch of searches of this forum and found several dudes who restored these old turbos so I was really hoping to get one of them. I guess the forum game is just dead these days though.
Thank you for the link! It doesn't appear there is a turbo version here, but there is some info here that will probably prove useful. I am going to see the truck again Wednesday night, hopefully something good happens!
To start, thanks for letting me in here. Second, its worth noting that I am mechanically inclined and do most all my own work so if you give me a test to perform, I can probably do it, but I know absolutely zip about these trucks.
Spoiler
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I work with a charity that finds, fixes up, and donates cars to qualified applicants. We are called Rolling Start and we are based in Western North Carolina, its all volunteer labor.
Someone donated this SWEET 5 Speed 4WD '86 Turbo pickup. She's a beauty by no standard, someone put a bed on it from the next generation up. But its rust free, complete, and the interior is in pretty decent shape. It came to us under the guise that it needed a fuel pump. I put one in it, and now knowing how it works, I don't think it ever needed one. Here is what the truck is doing:
It will start, but you have to have the throttle flat on the floor and hold it there while it stumbles to life. Once its running, it'll idle for a short period but will choke out before too long. If you keep the RPMs up it'll run indefinitely. If you let it die, it probably wont start again for a while. It also smells like fuel constantly. This is an easy flooding diag, to me. But here's a weird thing. If you leave the ignition on and stick your head under the hood you can hear the injectors (multiple) firing at random. Like a spasm almost. Just clicking at random. This floods the engine instantly. I am not sure if its all the injectors firing, or just a few. What I feel certain of is injectors 3-4 are doing it. As an additional data point, there is a box on the passenger fender well with cooling fins on it. Behind the fuse box kind of. At some point in my fiddling that box was about a million degrees. Again, not familiar with these trucks at all, but with the injectors freaking out and that box being super hot, I suspect they are connected.
So the question here is, whats the deal? Why is it flooding? Why are the injectors freaking out? How can I get this truck back to goo running condition so we can sell it and put that money into more free cars for folks in need?
Replying for the updates.
Last edited by MadisonLewis; Nov 20, 2024 at 11:27 PM.
Nov 2, 2024 | 06:25 PM
