94 cv no fuel and no spark
___Brandon
10-28-2007, 05:25 PM
I'm stumped. When I turn the key on the relay that powers the computer turns on, but the relay that powers the fuel pump will not turn on. I blamed it on a faulty computer and bought a used one off ebay. I just put it in and nothing is different from what the original computer was doing.
If I jumper the relay socket the fuel pump will turn on. But the car doesn't have spark so it won't run. Could this two problems be connected? I've looked at the fuses and couldn't find any that were blown.
I don't know where to look next.
If I jumper the relay socket the fuel pump will turn on. But the car doesn't have spark so it won't run. Could this two problems be connected? I've looked at the fuses and couldn't find any that were blown.
I don't know where to look next.
way2old
10-28-2007, 07:15 PM
Look at all the wiring going across the front bumper assembly. They are bad about breaking under the battery tray where they sag down before they go into the bumper tray.
___Brandon
11-03-2007, 07:06 PM
:banghead:
I took a glance at the harness, and it seems to be in good shape.
I called the local Ford dealer and the service guy told me to look into the manual lever position sensor (MLPS). I took a look underneath the car and found that the shift area on the transmission was jammed full of mud. There is something strange going on with the shifter also that makes it feel really mushy. I felt around on the steering column and I think something might be busted up there where the shifter meets the shift cable, but I can't see what is going on up in there. At any rate some sort of funny business has gone on with this shifter.
I took the MLPS off the car and cleaned up a bit. I found a PDF file that explains how to do a resistance test on it.
My question is, should the moving part on this sensor move smoothly from one end of rotation to the other? Should I feel positive detent positions that I could count out P-R-N-D-2-1 ?
What I am getting is kind of a grinding or crunching down around the P- R area of the rotation and that is it. That doesn't really seem right. It sure is hard to differentiate one position from the next while rotation that thing around!
Also, could this sensor be causing my problem (no power to the fuel pump relay)?
Thanks for your help!!!
I took a glance at the harness, and it seems to be in good shape.
I called the local Ford dealer and the service guy told me to look into the manual lever position sensor (MLPS). I took a look underneath the car and found that the shift area on the transmission was jammed full of mud. There is something strange going on with the shifter also that makes it feel really mushy. I felt around on the steering column and I think something might be busted up there where the shifter meets the shift cable, but I can't see what is going on up in there. At any rate some sort of funny business has gone on with this shifter.
I took the MLPS off the car and cleaned up a bit. I found a PDF file that explains how to do a resistance test on it.
My question is, should the moving part on this sensor move smoothly from one end of rotation to the other? Should I feel positive detent positions that I could count out P-R-N-D-2-1 ?
What I am getting is kind of a grinding or crunching down around the P- R area of the rotation and that is it. That doesn't really seem right. It sure is hard to differentiate one position from the next while rotation that thing around!
Also, could this sensor be causing my problem (no power to the fuel pump relay)?
Thanks for your help!!!
___Brandon
11-11-2007, 09:25 AM
I finally found it!!!
I found a broken wire under the relay box on the drivers side fender. It corroded to the point that the wire just let go. This seems odd to because I'd say that things look pretty clean under the hood for a 94. I threw an alligator clip lead on there and boom, it fired right up.
Now I have to figure out how to get that relay box apart so I can get it fixed permenently.
The sloppy feeling shifter turned out to be a loose bolt on the stamped steel bracket on top of the steering column that connects the shift lever to the shift cable.
I don't think the MLPS has anything to do with the fuel pump circuitry. I think that if there would be a problem with the car cranking over the MLPS could be to blame but that's about it. In this regard the MLPS acts as a neutral safety switch.
I found a broken wire under the relay box on the drivers side fender. It corroded to the point that the wire just let go. This seems odd to because I'd say that things look pretty clean under the hood for a 94. I threw an alligator clip lead on there and boom, it fired right up.
Now I have to figure out how to get that relay box apart so I can get it fixed permenently.
The sloppy feeling shifter turned out to be a loose bolt on the stamped steel bracket on top of the steering column that connects the shift lever to the shift cable.
I don't think the MLPS has anything to do with the fuel pump circuitry. I think that if there would be a problem with the car cranking over the MLPS could be to blame but that's about it. In this regard the MLPS acts as a neutral safety switch.
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