My 1994 Ford Ranger( 4.0L 6cyl) Starts wright up, Runs for a few minutes idling high then dies. Changed fuel pump and filter 8 months ago.Recently Changed fuel pump relay, Checked vac hoses, Was told it was ing mod, changed that today still doing same thing!!!!
As with any no-start or stall problem you will need to figure out if it is a fuel or ignition issue.
The high idle usually means you have a vac leak or a problem with the throttle body or idle air control valve. The control valve is how the computer controls the idle speed.
You'll need to watch the fuel system and spark to see which is being affected when the engine dies.
You might want to hook a test light up to the coil to see if it is loosing voltage for example.
SOURCE: I have a 1997 Pontiac Grand Prix GTP. Recently put
If you replaced the fuel pump then there is a possibility that during the job then some debris from the tank and/or filter got loose somewhere into the fuel system and is in your lines. It could even be a very tiny speck of gasket material, old or new.
SOURCE: 1992 toyota celica gt 2.2 starts runs rough then dies
Sounds to me like the fuel pump is worn out. They DO wear out. And even though they seem to be working, the brushes in the electric fuel pump may not be contacting all the commutator, thus making the pump weak. It may start the motor but can't maintain normal running pressure (27-35psi). Have you run the car out of gas shortly before this problem surfaced? If you have then it's your fuel pump. It was damaged when the tank ran dry. Even though the pump may seem to be working, it's still badly damaged and needs to be replaced.
Just as Matmenzies has stated, get a fuel pressure gauge and test the pressure. I'd start with a complete check of all your vacuum lines. Check for cracks on the vacuum hose that connects to fuel pressure regulator on the fuel rail. Also, if you can, get a hand operated vacuum pump to check the regulator. If you can place a vacuum on the regulator and it holds, I'd say move on the fuel pump and check it.
BTW, if the fuel filter has been changed, you may want to check to see if it was installed backwards! Some fuel filters are valved and will cause symptoms like this. However, this is an immediately noticeable mistake and you haven't provided enough info for me to say more. I'd pull it and check that it has any flow at all. You could have sucked in a big dirt ball and blown it right into the new filter, effectively stopping fuel flow. Then I'd blow out the fuel lines, just to be sure.
Start with these 2 things and post what you find. We'll go from there.
SOURCE: 96 s10 2.2 4cyl. running lean
I know you said new fuel pump and filter but I would recheck the fuel pressure. Drive the vehicle with the fuel pressure gauge on it and see if the pressure drops after 10 minutes.
Testimonial: "Thanks for your suggestions. It was the new 2 wk old fuel pump that was bad. Problem solved!"
SOURCE: Where is Fuel Relay for 2004 Dodge Ram 3500 Diesel Truck
it doesn't have a fuel pump relay it has a fuel pump control unit and it is located on the chassis back quarter drivers side near the tube cross member for chassis on top of chassis rail near bed mount. locate the rear springs front perch and it will be above that on top of rail.
hope this helps. good luck and please ask any question you have.
Testimonial: "Thanx for info..no wonder I couldn't find Relay! "
SOURCE: 95 honda accord dx with 2.2 non vtec won't stay
Hello
You say you checked the ignition switch, you are 100% sure that isn't the problem? this year and indeed most 1990's Honda"s has a problem with the electrical contacts in the ignition starter switch, the symptom is the car will run until the key is released to the run position or the engine just stalls for no reason, the switch is very easy to replace and I bet is your problem, just remove the sterring column covers, they are a **** shell cover the screws are recessed on the bottom of the cover, Honda doesn't sell the switch seperately from the key cylinder buy it is sold in the after market, here is a price and picture of the part.
STANDARD MOTOR PRODUCTS Part # US288 {IGNITION STARTER SWITCH} $31.79 US
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Tnx for your help Stephen, Truck up and running!!!!
Super ! What was the verdict ?
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