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My mechanic has been looking at it off and on for the last few days (and has had it most of the day today) and is so far stumped. He has checked fuel pressure, spark, trouble codes, etc. The latest development just a little while ago (hit 90 today) - I noticed when turning the key to the first position before starting - you should hear the fuel pump pressurize the system then stop when at pressure - the fuel pump is not stopping when ignition is in first position. I am betting that when the fuel pump does stop (meaning it is properly pressurized) that it will start. Letting it cool down as I type this and will give it a go in a bit and report back.
Have you had any luck on your end? Thanks!
i am mechanically inclined, worked on cars a lot, but am at a complete loss and have no idea whats going on. if you have any advice please let me know.
Clogged fuel filter?
My Dad has a 1994 with a 95-3 liter V-6, with coil type distributer.
see http://info.rockauto.com/Airtex/Detail.html?5C1125.jpg
We had the same problem starts when cold, drive around for 30 mins, turn engine off, go to restart and usually won't ignite at all, until a couple hours later after its cooled off. Took to Ford dealer, crooks wanted to replace all sensors, analysis said it was DPFE sensor, replaced it but nothing changed. Replace the plug wires, and just maybe that worked because now the engine problem light on the dash has turned off -- waiting to see, our fingers crossed that this solved the starting problem, but I doubt it.
Spoke to really good mechanic/friend who has own Rangers, he immediately said it is the square distributor cap (see website above); the problem is the stator/coil inside becomes faulty due to the heat, it is what divides the spark to the plug through a magnetic field. Probably needs to be replaced. The way to check it, is next time your engine does not start, lift one of the wires off of the distributor cap about 1/8 inch or less away from metal in open and see if a spark jumps when someone else turns the engine over. If not, that should be your problem. RockAuto.com is lowest price in nation, $85.
Good Luck!
Aaron
Thanks,
Aaron
I beleive the problem may lie in the power distribution box.possibly in the contacts for the relay or grounding. i'm going to try cleaning the contacts with contact cleaner and oxy-acetylene torch tip cleaners.i will let you know if this helps.
My truck is having intermittent fuel pump failure.I have swapped relays,changed fuel filter & fuel pump.Still having the same problem.If the problem is in the fuel pump relay contacts in the power distribution box then changing/swapping relays won't fix the trouble. The contacts may be dirty/corroded or become a loose fit.
I hope this works, it seems there are a lot of rangers with similar problems.
If any one knows or has any other ideas please reply. thanks
Both of them.
Connections on both ends.
Check for corrision inside the insulation.
Do you have a voltmeter and ampmeter?
Can you find the fuse box?
If you don't, take the car and pay someone.
Finding an intermittent electric drain is a tough job.
What may have caused my original problem was that instead of using the store-bought purple sealer, I used bearing grease to coat the outside of my terminals. I suspect that over time, the grease had invaded the area between the clamp and the terminal.
Thanks
BACK TO THE SHOP I GO : :mad:
Just finished reassembling my engine after replacing my pressure tested resurfaced heads. I replaced every gasket and o-ring including the injectors since we had it apart anyway. 145,000 miles and this is the first real service we've had to do.
Truck won't start.
The battery was disconnected from Dec 14th until yesterday when we tried to start it. IS there any chance the computer needs reset, reloaded or something. :confuse:
If you turn ur key and hear the solenoid click "just once" then nothing.....most likely the battery leads or a dead batt. I was so mad when I fixed mine spent over 200 bucks on new parts just over a dumb wire lol But hey atleast I wont be replacing the new parts netime soon. ANother thing is OLDER rangers are oil leakers..... and if u trace ur hot wire back to the starter you will see the wire runs right by the oil res underneath.... I have had friends who had bad starts due to the oil leaking on to the hot wire and alas it wont start. I hope this helps neone who comes to this thread cause i was puzzled and really got no real answers online. So here is my two cents.
Dan.
I'm not a mechanic, just a weekend warrior.As an electronics / technology specialist, I do however, understand and appreciate the importance of good contacts and wiring in any electrical system. Inspect all your sensor contacts for wear and be sure they're secured. Also a good idea to use dielectric grease on your contacts too.
On older Rangers, there is a 'rollover switch' which shuts down the power to the fuel pump. It is in the passenger footwell, near the tunnel, just behind the upper end of the carpet. There is a pushbutton on it to reset it. And/or maybe wiring to it is bad.
I assume you've checked all fuse already?
The fuel pump also has a relay in the fuse box. These go bad. There are usually 2 or 3 identical relays there which can be swapped around.