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Crank sensor location

1985 ford f150 5.0l/302 efi

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  • 188 Answers

Front of engine, lower left side when looking from front. At the crank shaft vibration damper.

Posted on Oct 21, 2013

  • 2 more comments 
  • eric pierce
    eric pierce Oct 27, 2013

    sorry it took so long to get back to you. I looked for the spot you said it was at and cant find it. come to find out, the 5 speed has a crankshaft position sensor but automatic does not. do you have any other suggestions to what might be the cause of my problem: the truck will start just fine and run until it gets warm, then it will just stall out and wont start back. waited a min then it started but the timing was way off. ive changed both fuel pumps, distributor, timing chains and gears, coil, ignition control module, spark plugs and wires, distributor cap and rotor. any ideas would b great. thanx

  • Quarter Mile
    Quarter Mile Oct 28, 2013

    Sounds like that to me as well. You might have to get a code reader that gives you the values of what each sensor is doing to locate the problem. Could be an EGR or Coolant Temp sensor.. I have found a site that is extremely helpful and free... It is AA1car.com If you dig around, you will get to where you need to be in the site and it should help... Hard to determine what is wrong without being there. Try to test the EGR by unplugging the vacuum line and giving it some vacuum. If it stalls out, EGR should be ok. Is there a plate installed behind it ? This might be a factor. To check the coolant temp sensor.. When it gets hot and stalls out, unplug it... if it runs, then that is your problem! Good luck and keep me posted as to what you find. I will do my best to help! :)

  • eric pierce
    eric pierce Nov 03, 2013

    I got a code reader and got some codes. 41r, 34r, 13r, 77r, and 25r. 41r is the system lean/voltage low. 34r is egr/evap control system. 13r is low idle and 77r & 25r have to do with dynamic response test. im figuring the o2 sensor might need to get changed and turn the idle up a little. but as far as the egr/evap system I dont know where to begin. also with dynamic test, I dont know why that would be messed up. thanks for your help

  • eric pierce
    eric pierce Nov 04, 2013

    I tried adjusting the idle and turned it up way too high, it still said idle too low. also I figured out the dynamic test, I was suppose to floor the accelerated and release it immediately once I started to scan. so I only got 3 codes. 41r, 34r and 13r.

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Posted on Jan 02, 2017

RJones1125
  • 373 Answers

SOURCE: 1985 Ford F-150

if engine won't crack - dead battery
if engine cranks but won't start - no fuel or spark
fuel reservoir is the fuel tank.
a fuel filter can be inside a housing...

Posted on Feb 22, 2009

  • 1 Answer

SOURCE: 1985 Ford F-150 Truck (EFI) Fuel Problems

i actually have a 1985 302 efi... there are 2 pumps one one the rail right under drivers door and one in the tank.. there are also two filters... one just behind the pump one the rail.. its actually inside a canister that you open with a oil filter wrench then it has a paper element inside..then there is a inline filter that is actually part of the high pressure line the hose is about 3 feet long and runs from your front pump up to the fuel rail agaist the firewall...this one is really hard to find (Buy) good luck wish i hade a carb

Posted on May 25, 2009

  • 3600 Answers

SOURCE: Idle Screw location on 1984 Ford F150 302...

it has a metal cap on it and has to be drilled out and ajusted by a licenced mechanic if your talking about the fuel mixture for the idel it's on the cabe near the body of the carburator.

Posted on May 28, 2009

  • 1 Answer

SOURCE: 1985 Ford F-150 Truck (EFI) Fuel Problems

Same problem with my 85 F-150 5.0 EFI---turned out that the fuel pump relay under the hood was teriffically corroded on the inside (I opened up the relay to look inside). When I checked the voltage at the fuel pump it would show 3.5-6 volts instead of 12 volts.

I was thinking fuel blockage or perhaps failure of the in-tank pumps. Sometimes the truck would start and run, othertimes it would neither start nor run. Typically, if running it would stay running until turned off (where the relay had to break).

Changing the green fuel pump relay fixed the problem--12 volts now at the pump and no reoccurance.

Good luck--let me know if this fixed your F-150.

riippa@aol.com

Posted on Sep 22, 2009

  • 608 Answers

SOURCE: how do i get a 1986 ford f-150 with a efi 302

When you turn on the key, the fuel pump starts and runs for one second. Under normal circumstances this is long enough the bring the fuel pressure in the fuel rails up to spec. But it is not long enough once you run the fuel system dry. The easiest way to remedy this is to turn your key on and off six to eight times with 2~3secs interval. If there is no problem in the system, this will get the fuel pressure up in the rails and the engine will start.

Posted on May 01, 2010

Testimonial: "Thank You, I'll check pressure tomorrow. Seems when it was coming out threw release valve there was plenty, but..."

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1985 Ford F-150


if engine won't crack - dead battery
if engine cranks but won't start - no fuel or spark
fuel reservoir is the fuel tank.
a fuel filter can be inside a housing...

Feb 22, 2009 | 1985 Ford F150

3 Answers

1985 Ford F-150 Truck (EFI) Fuel Problems


i actually have a 1985 302 efi... there are 2 pumps one one the rail right under drivers door and one in the tank.. there are also two filters... one just behind the pump one the rail.. its actually inside a canister that you open with a oil filter wrench then it has a paper element inside..then there is a inline filter that is actually part of the high pressure line the hose is about 3 feet long and runs from your front pump up to the fuel rail agaist the firewall...this one is really hard to find (Buy) good luck wish i hade a carb

Feb 14, 2009 | 1985 Ford F150

4 Answers

1985 Ford F-150 Truck (EFI) Fuel Problems


Same problem with my 85 F-150 5.0 EFI---turned out that the fuel pump relay under the hood was teriffically corroded on the inside (I opened up the relay to look inside). When I checked the voltage at the fuel pump it would show 3.5-6 volts instead of 12 volts.

I was thinking fuel blockage or perhaps failure of the in-tank pumps. Sometimes the truck would start and run, othertimes it would neither start nor run. Typically, if running it would stay running until turned off (where the relay had to break).

Changing the green fuel pump relay fixed the problem--12 volts now at the pump and no reoccurance.

Good luck--let me know if this fixed your F-150.

riippa@aol.com

Feb 14, 2009 | Ford F-150 Cars & Trucks

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