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thanks for any help , rcmax
It runs great on the fwy or once you get going. its when you take off it wants to stall and you have to give it gas so that it wont turn off, at the same time when this happens i can see a small amount of black smoke and i give it gas so that it wont turn off, any hints or any successful repair that will take care of this problem
A couple weeks ago just by chance I checked The "Mass Air Flow Sensor". That was it !! Problem solved now it's running like new again.
The mass Air Flow Sensor is located at the out end of your air filter cover. The thing is held in by two torques screws. Simply remove the two screws and remove it. It's a silver and black plastic box with a plug on the end of it. It's function is to sense the amount of air passing through it and send the information to the "Brain Box" which programs the fuel injection system with the right amount of air. Because it is on the clean air side of the air filter it can collect fibers from the filter itself, it also collects dust particles and pollen. When it is plugged up the brain box sends the wrong information to the fuel injectors resulting in a poor running truck. Here is a couple of hints to help you. Don't try to unplug the wire till you remove the unit. PUSH down on the plug release (don't pull) to remove the wires plugged into it. Here's the big one.....Use the right cleaner, buy a can of Mass Air Flow Injector cleaner and read the instructions on the can. It costs about $8 a can at O Reileys or Auto Zone. Let the sensor dry compleatly before you re-install it. After the first start the truck might throw a code (engine lite) If it does, no problem. Remove the negative wire from the battery, wait about 15 minuets then hook it back up. Re-set your clock start the truck and you're finished. Mass Air Flow Sensors should be cleaned everytime you change your air filter. It takes about 10 minuets total time and it's worth the effort. On the can of cleaner they claim 4-10 more horsepower at the wheels with a clean MAFsensor compared to a dirty one. Expect a smoother cleaner running engine also. 4-10 more horses also translates into fuel savings. This is a little job worth doing on any fuel injected vehicle not just the Rangers.
PS: My Ranger is a 2004 Edge with the small V-6. Yours may be slightly different. The MAF Sensor will be the first sensor in line on the out flow of your air breather box.
Lastly check your exhaust pipe. Mine had a lot of soot built up on the tip of the pipe both inside and out, an obvious indication of an engine that is running rich ( to much ) fuel and and air mixture. Clean it up with a old rag and watch it for awhile The inside of the pipe should not be full of black built up soot, It should be kind of clean with a grey color inside.
1. Clean the Mass Air flow sensor
2. Replace throttle control sensor $30
3. clean pvc valve
4 find and fix vac leak
5 find vac leak in the intake manifold gasket upper or lower
Has to be one of these things. Try looking down the back of the engine with a mirror and flashlight for oil leak--listen for hissing vac leak
-Failing/weak fuel pump. It's inside the fuel tank. A gauge can be attached to the fuel line under the hood to check the pressure. Low pressure means a weak pump.
-Belt slipping.
There are multiple other things that could cause each problem.
Keep in mind, it will do it once, and then we will restart it, and its fine,like it never happened.
Well, my fiance was driving it to work this morning on the freeway and it did the same thing twice. only difference, it was while he was already driving. It took him awhile, but he got it to start and got it back home.Had to call into work. This is his work truck so we are really worried about fixing this or he doesnt have a job any more.
No money to get it diagnosed. Any ideas??
Hello fellow ford rangers out there.....
Ok...here we go again. I'm still having issues, but it's intermittent. Last year I got the relays or something wet that prevented the car from starting, then I thought it all dried out, but had to replace a few things.
1986 Ford Ranger / 2.3 EFI / 140 CID OHC /4-Cyl/5 speed
So the last time I was here, I was having doggy issues which I thought were fuel related. I'm still having issues, although it appeared to cleared up a bit.
When I start the engine, it cranks over, I'd give it some gas, it would rev up, then suddenly die, no matter if I pressed down on the gas pedal or not. After two or three times doing this, it would turn over and maintain a steady idle, then off I go.........
The problem now?
Well, late today I tried to get it going, and after about 15 times, I gave up. It would not stay idling, it would crank over then die. I did not want to ruin the starter. It seems the gas pedal is worthless after the engine decides to conk out, and no matter how many times I step on the gas pedal, nothing happens.
It would be so pleasant if I could get close to pinpointing this cause, instead of playing the expensive process of elimination game. I DO realize what a long shot that would be, for someone to just tell me, "Hey, dude, check your ##$@&&, that's definitely your problem!", but life seems never to be easy.
Has been replaced within the last few months:
Fuel filter regulator,
Inline fuel filter,
Cap and rotor,
Lucas fuel injector cleaner,
ECC computer, and Fuel relay switches, (multi-function relay/connector switch)
Idle Air Control Valve - Removed and Cleaned.
Checked all vacuum hoses.
Has not been replaced:
Map Sensor,
EGR Valve and sensor,
Throttle Position Sensor,
EVP sensor,
Spark plugs, (two years ago)
Plug wires, (two years ago)
Ignition control module, (replaced about six years, or more)
So, I can sure use some help from anyone who experienced these symptoms, and what did you do to correct the problem?
With trying to keep the gas going to turn it over, it does not, so to me, it seems to be more of a fuel problem than electrical, but I'm no mechanic. Thank you for any help! :-)
:confuse:
One thing you can check is your fuel shutoff switch, usually located at the top of your carpeting on the passenger side floorboard. Check to see if the switch is bad or if you have a melted wire harness leading to the switch. I have had similar issues ( not exact) and i found a melted wire harness at the base of this switch. $75 at a local junkyard and the problem was fixed. Its worth a look, hope this helps.
I did tap and clicked on the Inertia or Rollover swith on the passenger's floor. This could be anything.
Well, after a week of painful neck and shoulder pain, (Doc said it was osteoarthritis, that and sleeping on pillow wrong) I'm finally back on computer. Did not have time to do anything with my truck. I'm still in a little pain, but I'm trying to pinpoint the cause of my truck not running. it cranks, but does not turn over.
Some one told me over the weekend NEVER use fuel injection cleaner in this old 26 year old truck, because he sez, it can muster up all the contaminates and clog places where the fuel could not get to the injectors. it was LUCAS DEEP CLEAN Fuel System cleaner. I added this to a full tank of gas back in February, so this may or may not have anything to do with my problem.
The mechanic told me he found metal shavings in the inline fuel filter, he told me that the pump might be breaking down after 26 years. So I think I'll have him replace the pump. I am not a mechanic, nor do I have any test gauges, etc., so I am at the ''honest'' mechanics mercy.
Had a problem a couple of weeks ago where it sputtered wouldn't accelerate or die. Mechanic replaced Ignition Module.
Ran great for about 7 miles and then it died, while I was driving.
Now, driving down the road at any speed the truck will just die out but it does not have any problem of starting up and driving on.
It happens every 5 to 20 miles, as I've tracked it for about 150 miles and it's happened 10 times.
Mechanic is at a loss. he did switch out the Ignition Module to make sure that wasn't the problem.
He's suggesting the most reasonable problem is probably the Crank Sensor. The issue is that it's not easy to get to. So having already spent $400, I'm looking at at least another $400 to try something that might or might not be the problem.
Any suggestions?
Thanks
"driving down the road at any speed the truck will just die out. restart with no problem and then continue for another 5 to 20 miles before it happens again"
I'm curious from rick2343 if the Crank Sensor fixed his problem.
Also curious what CAD NORTHSTAR is as that's what insanetang suggested.
I was the original owner of this truck...until someone clipped from my drivers side rear, threw into a Pit maneuver, and a 180 spin, just 'totaled' my truck about two weeks ago. I almost replaced my Pass side interior kick wall computer, but thankfully, did not before this happened, and saved 100.00. It was not the problem anyway.
Now for a 86' ranger, the wreck yard offered me $350.00, and Loss of vehicle close to $2400.00, so for a 26 year old 'wrecked" truck, I should count my blessings! Now the task of trying to find a replacement truck, and hopefully, not inheriting other people problems. Good luck to you. I know it seems daunting having to play the process of elimination game, but sadly, that's what you might have to do. reading codes helps the process.
I'm still having problems with my 94 Ranger. It still dies but it could be 2 miles or 100 miles. Can't replicate the problem.
When it stalls, (as the truck is moving - it's a stick) I put in the clutch, put it in nuetral, turn it off, restart, put it in gear and let the clutch off. Takes about 10 seconds and I typically don't lose any speed.
It's been 6 months and I still don't feel like I have a handle on it enough to have my mechanic do anything. (I've only driving 1,800 miles in that time)
He wanted to replace the main sensor (?) would would have been $400+ I really don't think that's the issue.
I still believe it's connected to the Ignition Module some how and it could be the grounding.
It doesn't happen when it's idealing and can't be recreated by the mechanic.
I don't want to jinx it but I've driven for a week and it hasn't stalled. Maybe it's fixed (probably not)
Anyone with any more thoughts?
There is also a fuel cutoff switch. This switch cuts off the fuel pump if the truck rolls over. This switch is under the carpet, just to the right of the 'tunnel', at the top of the carpet, in the passenger footwell. There is a button on the top to reset it. It probably does not need to be reset, because if it was tripped the truck would not start. But the connectors on this switch might also be loose. Check it.
And, the fuel pump might be weak, and not putting out enough pressure to really power the injectors. Or the fuel filter might be somewhat clogged and needs to be replaced. It is on the frame, under the drivers door. If you pull the lines on this thing, fuel will leak out. Use a pencil to push into the fuel line to block it off. Do not work on fuel stuff inside a garage, gasoline loves to explode.