Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 09-01-2009, 02:52 PM
Nameless891 Nameless891 is offline
Learning to use the forums
 
Join Date: Sep 2009
Posts: 7
Default Runs for about 30 mins and cuts off

I have a '84 Ford Ranger 2.8 v6 with new plugs, plug wires, distributor cap, fuel pump, thermostat, and oil sending unit. If i try to start it when it hasn't been started in a while it will start just fine and will run strong. but after driving it for about 30-45 minutes it will start to choke and cut off and it wont start back up for about 15-20 minutes but i can get it started with a spray of starter fluid but it just cuts right back off and i have kept the engine running by spraying short bursts into the carburetor but when i stop spraying it just cuts right back off.

i have no idea what it is, put it a new fuel pump and it still does this.
Reply With Quote
  #2  
Old 09-03-2009, 03:47 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Hmmm, well you are telling me it is a problem with fuel.
I'm gonna go out on a limb here and tell you to add Iso alcohol to your tank, about 6oz's
while it is cold. Then rock the truck manually from side to side via the bed rail wait 5 minutes and then drive it. If it is in fact bad gas then it'll be fixed before it would of failed. This advice is based solely on info provided, as you gave no notice of this vehicle having a history of this issue and I assume it is a new happening. BOL
Reply With Quote
  #3  
Old 09-05-2009, 12:42 PM
Nameless891 Nameless891 is offline
Learning to use the forums
 
Join Date: Sep 2009
Posts: 7
Default

So... i tried this and it didnt work... it still cut off, luckily i wasn't far from home and i was still able to make it back home. i parked it and let it run it cut off agian in about 10 minutes while it was sitting still. i started it back up and it ran and continued to run for about 25 minutes. i didn't try to drive it anymore i just let it sit there and run.... idk what to do im going to pull the bed and check the tank for sludge.. probably drain it and clean it out and see how that works... im out of ideas i have no idea what the problem is and i dont have the money to take it to a professional. so please guys any ideas will help..
Reply With Quote
  #4  
Old 09-05-2009, 06:46 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Well, fuel is still my 1st thought but I have dealt with cases where our MSD system fritzed and would run fine for said amount of time and then would fail along the same lines you are describing. It was only clear to us as we were installing the system when it happened. Of course our car was a 9+ 1/4mile car and running under those conditions.
It was a problem with a faulty coil that would overheat and short. If you have access to another coil, friends truck you may want to try it. It is possible that the input lines are failing, if it were the ICM you would most likely have issues with irratic idles and performance like you're running 2 of 8 cylinders.
Hmm, this is a long shot but have a mech shoot the cats for temp, if they are really bad it is possible that the back pressure when they over heat and swell is stifeling the motor. Another tell tale is get it running at night in a dark area until about when it would choke and look at the cats, you'll know.

Last edited by 02'4.04x4; 09-05-2009 at 11:16 PM.
Reply With Quote
  #5  
Old 09-05-2009, 11:17 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Is there any stumbling, variation of 500rpm or more, droning and launching, or just hello, goodbye?
Reply With Quote
  #6  
Old 09-07-2009, 01:13 PM
Nameless891 Nameless891 is offline
Learning to use the forums
 
Join Date: Sep 2009
Posts: 7
Default

yes, it will choke a couple of times before it actually cuts off.
Reply With Quote
  #7  
Old 09-15-2009, 09:51 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Hmm, this is getting old school and I am not familiar with domestic older motors.
But I'll give it a go. I would start checking the Ignition system, starting with the coil, run her til she dies and pull the coil wire off the dist. and hold it (safely 2-3"'s up the wire) very close to an engine stud check it for spark try and pay attention to color. If no to weak spark, you know where to begin. The only other thing I can think of would be vapor lock, or a bad fuel line swelling internally, but that seems like a long shot
__________________
Current Mods
White gauges and Temp Cntrl, OHCw/Buggman LED mod,
Bosch +4, Accel Coil Pack, MSD6AL, Walbro, HiFlo Fuel filter,
Custom Ram Air, K&N, Ported / Matched intake, JBA 9mm wires,
Tweeked FPR, EBC 6k's, DynoMax-S CatBack, Jet-Chip, Reflex shocks,
New Anvil Mounts, Timbren's, Optima Yellow, DB 220A Alt. w/4g. jumper,
Western snow plow, More2Come
Reply With Quote
  #8  
Old 09-24-2009, 06:35 PM
rlw13 rlw13 is offline
Learning to use the forums
 
Join Date: Sep 2009
Posts: 7
Default

Is your truck fuel injected? Or do you know if it has an oxygen sensor? I had an '84 ranger that would run great until it got to full temperature then it would run like it was running out of gas and try to die out. I guess the O2 sensor stopped sending signals to the CPU. That was fine until the CPU needed the O2 sensor to tell it that the engine was at full temp and needed to make adjustments. I think I paid about $50 for an O2 sensor and needed a special socket to remove it. Otherwise it's easy to replace. Just my 2 cents. Hope it helps.
Reply With Quote
  #9  
Old 09-24-2009, 07:09 PM
Johnbaum13 Johnbaum13 is offline
<-----Buzz Killington
 
Join Date: Jul 2009
Posts: 1,232
Send a message via Yahoo to Johnbaum13
Default

Also, maybe the vent on the tank is clogged? then as you run it, it would created a vacuum in the tank til it couldn't draw any more out. As it sets for 15 min or so, it bleeds off the vacuum, and you can go for 30 min again. Just a thought, and my reasoning behind it.
__________________
I got my Jesus on the dashboard, but the Devil's under my hood!
Reply With Quote
  #10  
Old 09-24-2009, 08:35 PM
mrdadeink mrdadeink is offline
Ford Pickup
 
Join Date: Aug 2009
Posts: 102
Default

maybe the new fuel pump is faulty as well HEY it happens!
__________________
88 ranger 2.9 cold air intake custom exhaust mustang wheels shaved mirrors rollpan clear tail ligts custom paint
Reply With Quote
  #11  
Old 09-24-2009, 09:45 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Well you can try Johnnies thought and leave the gas cap off. . .

Other than that you really start getting into TSing.
Here are some things I would check.(this is assuming it is a TBI engine)
Fuel return line check valve.
EGR stuck(if equipped, doubt it on an 84)
Distributor capacitor
Ignition coil
Have injector tested, or just replace. (you can observe the function at just started and again just before you think it will die, and so forth check for flow stoppage)
ECU
__________________
Current Mods
White gauges and Temp Cntrl, OHCw/Buggman LED mod,
Bosch +4, Accel Coil Pack, MSD6AL, Walbro, HiFlo Fuel filter,
Custom Ram Air, K&N, Ported / Matched intake, JBA 9mm wires,
Tweeked FPR, EBC 6k's, DynoMax-S CatBack, Jet-Chip, Reflex shocks,
New Anvil Mounts, Timbren's, Optima Yellow, DB 220A Alt. w/4g. jumper,
Western snow plow, More2Come
Reply With Quote
  #12  
Old 09-30-2009, 12:14 PM
Nameless891 Nameless891 is offline
Learning to use the forums
 
Join Date: Sep 2009
Posts: 7
Default

I haven't had time lately to look at it but i will try these suggestions and tell you how its goes.
and not its not fuel injected its carb'd

Last edited by Nameless891; 09-30-2009 at 12:26 PM.
Reply With Quote
  #13  
Old 10-01-2009, 09:45 AM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

When it dies out check for spark from the coil. . .
Other than this i am gonna have to say that it is fuel related, I'll as Mr. Anonymous later what his thoughts are.
__________________
Current Mods
White gauges and Temp Cntrl, OHCw/Buggman LED mod,
Bosch +4, Accel Coil Pack, MSD6AL, Walbro, HiFlo Fuel filter,
Custom Ram Air, K&N, Ported / Matched intake, JBA 9mm wires,
Tweeked FPR, EBC 6k's, DynoMax-S CatBack, Jet-Chip, Reflex shocks,
New Anvil Mounts, Timbren's, Optima Yellow, DB 220A Alt. w/4g. jumper,
Western snow plow, More2Come
Reply With Quote
  #14  
Old 10-01-2009, 06:45 PM
02'4.04x4 02'4.04x4 is offline
Ford Ranger Driver
 
Join Date: Aug 2009
Posts: 634
Default

Well, some things to check are the PCV valve check that it rattles freely(cheap to replace)(if dirty clean with carb cleaner both the hose and fittings), ensure the fuel filter is flowing, he said you should pull the top of the carb and check it for debris in the bowls (not the likely cause as it would be more prevalent). Beyond this I would TS the Ign. setup starting with the coil, the ICM and the distributor. The part that is making this point towards fuel is that you can keep it running with the starting fluid(ether) if the igniton was the culprit then it would have be going by detonation.

Beyond this more details are needed or just come see me in KC and we'll get r done.
Need to know, does the vehicle start clean when cold/hot? How many miles? Type of gas run? It is plausible that the coil is going limp, and only with the introduction of of the extremely low flash point of ether will it fire properly so as you can see there are alot of little factors.
Let us know and we'll try and get you running.
__________________
Current Mods
White gauges and Temp Cntrl, OHCw/Buggman LED mod,
Bosch +4, Accel Coil Pack, MSD6AL, Walbro, HiFlo Fuel filter,
Custom Ram Air, K&N, Ported / Matched intake, JBA 9mm wires,
Tweeked FPR, EBC 6k's, DynoMax-S CatBack, Jet-Chip, Reflex shocks,
New Anvil Mounts, Timbren's, Optima Yellow, DB 220A Alt. w/4g. jumper,
Western snow plow, More2Come

Last edited by 02'4.04x4; 10-01-2009 at 07:04 PM.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
'97 Ranger Wiper Cuts Out stdprm11 Electrical Tech 12 09-08-2016 01:54 PM
Runs but dies tj88 3.0 Vulcan Tech 2 08-03-2009 06:42 PM
A/C Cuts Out DQuinn Electrical Tech 2 07-15-2009 12:33 PM
1998 Ford Ranger runs rough with sulfur smell? Michael K General Ford Ranger Discussion 1 01-01-2009 01:57 PM