Ford Ranger / B-Series :: 2.3L - PCM Fuse Keeps Blowing


Oct 28, 2012

Description: It will crank over forever but not start. New timing belt water pump, etc, so it is not timing. tried different fuel pump relay. no luck. new fuse no luck. The radio fuse also shorts and blows when I change it. Headlight does not come on, but the cabin "ding ding ding" sound plays. Marker, turning, reverse, and brake lights work.

CHECK ENGINE LIGHT does not come on during key turn. I may know what caused it or it may not. Before all of this happened, my audio system fuse under the hood blow. It blew again after I installed a new fuse (immediately).

One day, the wires on a portable cigarette light pump snapped and the two wires had been touch. I noticed the truck stalled several times when letting off the gas and coming to a rolling stop. The fuel pump relay makes a click noise when I turn the key

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Ford Ranger / B-Series :: 2000 - Fuse Keeps Blowing On

2000 Model, The fuse keeps blowing on this. I thought it was the cruise control fuse because the cruise kept not working and when I replaced fuse it would work. Only for a little though, then I looked at manual and it says the fuse is for the brake position switch. I am presuming this is just like the old days and that is the brake light switch under the dash. They use to have two wires now there is like five. Anyways I do not see any bare wires or anything that would blow a fuse, is it common for these switches to go out or what??

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Ford Ranger / B-Series :: 1991 2WD - EEC Fuse Keeps Blowing

My dad's 1991 Ford ranger 3.0 2wd just died on him when he was driving home and I checked to see if the truck had a spark and it did not so I replaced the ignition control module, then ignition coil, then distributor and rotor cap(plug) and I put new plugs and wires on it a few months back too. I also checked to make sure that the timing chain was working as well (while I had the distributor cap off). Then I realized that the EEC maxi fuse was blown. I then found a fourm that said it might be the relay so I replaced the EEC and the fuel pump relays while I had them both out. Every time I put a new 30 amp fuse in the EEC slot and turn the key to start it the fuse blows and the truck won't start. What might be wrong?

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Ford Ranger / B-Series :: Fuse 41 Keeps Blowing - Wiring Diagram?

Fuse #41 keeps blowing...scan tool says o2 sensor heater circuit malfunction. Problem is that when the o2 sensors are unplugged it keeps blowing fuse the second I hit the key. Where this short would be? I can't find a wiring diagram anywhere. ( I'm new to this forum and I'm sure there is a sticky somewhere..

DTC codes: P1451, P0743. P0750. P0760. P0765. P1747. P0135. P1409. P0755. P0155

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Ford Ranger / B-Series :: Reverse Lights Fuse 26 Blowing

Since last summer my truck keeps blowing fuse 26 and then I have no reverse lights. If I replace the fust its ok for a bit but blows again the same day sometime. The book says its the fuse for revers and overdrive. The overdrive button on the tree shifter stops working too but the truck does not seem to be revving any higher so I think the overdrive itself is fine. I can't find the short but its got to be shorting somewhere...

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Ford Ranger / B-Series :: 1992 - EEC Relay 30 Amp Fuse Keeps Blowing?

I recently got a ranger from my buddy and it keeps blowing the EEC fuse in the engine compartment. We have replaced the EEC relay and the EEC power relay. As soon as you turn the key it is blowing the fuse.

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Ford Ranger / B-Series :: 1996 - Fuel Pump Fuse Blowing

My 1996 Ford Ranger's Fuel Pump- Fuse keeps on blowing... (Fuel pump is new)... We need to find where the short is coming from!

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Ford Ranger / B-Series :: 1986 - Brake Light Fuse Keeps Blowing

I've got an 86 ranger sport and I'm having trouble with the lights. The turn signals work, and ALL 4 bulbs in the back are new. The brake light fuse keeps blowing, and the fuse for the tail lights is good but they won't come on at all. I was told there was a direct short somewhere, does that sound about right? And is there a common place where they tend to short out?

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Ford Ranger / B-Series :: Fuse 11 In Battery Junction Box Under Hood Keeps Blowing

fuse #11 in the battery junction box under hood keeps blowing, the last time I put a fuse in it blew immediately, key was off and lights off. Fuse is for parking lights, dash light and I/P(whatever that is) and switch illumination lights. I have to start following all wires to find bad spot. May just put in piece of metal and watch for smoke...

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Ford Ranger / B-Series :: 2002 - No Power To Fuse 28

I just got my grandpa's 2002 Ford Ranger Edge after waiting years to obtain it. It runs great the only problem is that there is NO power to the radio what so ever. The truck belonged to the family and every one drove it but no one knows what happened.. There is no power to Fuse 28 however 12V to all other fuses that have to deal with the radio.

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Ford Ranger / B-Series :: Fuse Box Panel Cover Missing

I've a 1994 Ranger XLT 4.0L with a missing fuse panel cover. I'm trying to get the horn to work and we've traced the problem to a missing fuse. Unfortunately, there are 3 empty fuse slots and no info on their rating or use. Where I can get the proper info. Truck was a salvage, no ops manuals, and sloppy work putting it together.

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5 Series :: 1995 BMW 525i - Fuse For AC Keeps Blowing After Few Minutes

I have a 1995 BMW 525i and the fuse for the AC keeps blowing after a few minutes. It's #9 in the fuse box. Before the fuse blows the AC works fine. I can't find any visible problems. Is there a common problem that I can check?

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F Series :: 1990 F150 Blowing F1 Fuse - ABS Light In Dash Comes On

My 1990 F150 blows the F1 fuse after driven a short distance. When the fuse blows the ABS light in the dash comes on.

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Ford Ranger / B-Series :: 1985 - Brake Lights Out - Fuse Blows Every Time?

So I did alot of electrical work on this truck but never had any problems with the brake lights, now they dont work and the fuse blows every time you pop one in.

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Ford Ranger / B-Series :: 2011 - High Beams Not Working Even Replaced Fuse

I have a 2011 ford ranger XL and I get no high beams. My low beams work fine but when I try to either activate the high beams or pull for the flash to pass they do not illuminate and the indicator on the dash doesn't come up either. I have replaced the fuse with a fresh one, even though it didn't need to be replaced, and also replaced the headlights as well cause one was burnt out.

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Ford Ranger / B-Series :: No Power At Cigarette Lighter - Fuse Checks Good?

I have a 96 Ranger . Neither my cigarette lighter or the auxiliary right beneath it works. The fuse checks good at the panel and I also used one of the penlight 12 volt testers and it shows no voltage on the lighter housing. Could there be another fuse under the hood that shares that circuit or do I have an open somewhere and need to tear down the dashboard? I haven't been inside that dashboard since I replace my cluster and the lighter worked after doing so. But I wish to avoid going back in there.

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Ford Ranger / B-Series :: 2005 - Heater Not Blowing Hot Air?

Got a 2005 V6 Ranger with low mileage. Having a heater problem. We've replaced the thermostat, heater core, flushed the system twice, burped it to get the air out and replaced the hot water valve. The heater works for a few days then it goes cool: not cold. Adjusting "Temp" will make the temp decrease but it will not return to hot air?

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F Series :: 2002 Blowing Fuse 29 - Auto Headlights And Overdrive Lock Not Working

Fuse 29 was blown when I got my truck, automatic headlights and overdrive lock didn't work. I replaced the fuse, the lights came on and overdrive locked out but when I shifted into park the doors locked and the fuse blew. How the door locks are related and why they would lock when shifting to park?

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Ford Ranger / B-Series :: 1992 - Wheel Cylinder Blowing Out?

'92 Ranger 2WD with 4 cyl and 9" brakes, right rear wheel cylinder keeps blowing out, replaced it twice. I've thought about maybe an obstruction in the left brake line creating too much pressure, or in the junction block on the rear axle. I believe only one line leads to there from the master cylinder, so what else could it be? Only other thing I can think of is that the right brake has a mechanical problem which is causing the forward shoe to move too far away from the cylinder, leaving no 'stop' so the piston just slides right out of the cylinder. But I can't figure that. Original adjuster star wheel was chewed up so I swapped in another, doubt it's that.

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Ford Ranger / B-Series :: 1997 - Spit / Sputtered And Died - Fuel Pump Fuse Blown

I drove my truck 2 times the day it stopped running. The 3rd time I tried to leave it started moved about 2 ft, spit and sputtered and died. It had blown the fuel pump fuse. I changed it and checked the fuel shut -off in the cab, passenger side. It was not tripped. Tried to start it and as soon as I turned the key it blew the fuse again. I changed the fuse again and this time I changed the fuel relay and the switch in the cab. Turned the key and it blew the fuse right away. Went to AutoZone because they are close to the house described what it was doing to them and they said sounds like a short in the fuel pump.

I purchased a new pump put it in turned key blew the fuse, pump just clicked...I found this site and my son noticed a thread where it said wires under the cab are good for wearing through and grounding out. I looked and it did wear through one wire coating. We taped it up, put extra cover over it and now it does not blow any fuses. Fuel pump still just clicked. Took fuel pump back for an exchange.....same thing. Turns over but fuel pump will not pump fuel. What am I missing?......

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Ford Ranger / B-Series :: 5R55E - Gasket Blowing Out Of Separator Plate

My buddy has a '98 B4000 4.0 4x4 Auto, and just recently he lost 4th gear for whatever reason. Which is strange, considering 5th gear still works, and OD requires direct (4th) to work.

So we're thinking its a valvebody problem, and apparently the gasket blowing out of the separator plate is a very common problem. So we decided we're going to drop the valvebody and inspect/replace the gasket.

Now I see that the they now bond the gaskets to the separator plate: What is the part number for this bonded plate?

I've also seen mentions of a TSB, and other mentions of an updated EPC solenoid. Looking for more info on this?

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