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Posted on May 26, 2012

I got a1985 ford f250 with a 460 it will run for 30 secs and die I change everything to do with the ignition system and fuel system and still wont stay runnin

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  • Contributor 7 Answers
  • Posted on Nov 06, 2012
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Joined: Nov 06, 2012
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Put so sea foam in carb let it sit over night start next morning should run fine it cleans out the carb get sea form at auto store runs about 10.99 a bottle just fill carb let sit

5 Related Answers

mike raines

  • 120 Answers
  • Posted on Feb 13, 2009

SOURCE: 85 Ford 460 pickup stalls

fuel pressure regulator

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Anonymous

  • 1 Answer
  • Posted on Apr 26, 2009

SOURCE: fuel system

I would check fule pump relay... Doe u hear the fuel pump runnning briefly when u turn the key on at first?

relays are a common thing to replace.. That woudl be first thing i would check. next step if thats not it is to see if the fule cut off switch has been triggered by hititng hard bumb or accident.. that usually cutts pup off all together so it wont even try to start

tkirby1109

Troy Kirby

  • 15 Answers
  • Posted on May 24, 2009

SOURCE: wont start

well if it dies after 15 20 min, then ide check your alternator cause that's what recharges the battery. just pull it out bring it to checker or auto zone or advanced wherever you go and they can tell you if it bad or not

Anonymous

  • 19 Answers
  • Posted on Jul 28, 2009

SOURCE: 91 bronco runs 30 sec then dies,

did you check the fuel pump and filter

ZX2Fast

Brad Kirby

  • 547 Answers
  • Posted on Mar 06, 2010

SOURCE: 99 Ford zx2 wont idle after i degreased the engine.

I would start with a compressoin check. You should get more then 160 psi on each cylinder on a cold engine. If these numbers are low, then the timing belt is your likely issue. Since these engines are non-interference (don't let anyone tell you different) you can just put a new belt and pulley kit on and be done with it. I even have a how-to for this in my tips and tricks on my profile.

A bad MAF (mass air flow) sensor can cause rough running problems. This is easily tested by unplugging the MAF (4 or 6 wire plug) from the vehicle to see if running improves. The connector for the MAF can be found on the front of the airbox just after the air filter locking ring.

If that isn't the issue, a fuel pressure test is an order. You should see around 45 psi with the engine at idle and 60 psi with the engine off and key on.

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86 ford f-150 xlt with a 302 5.0 v8 wont start until i put starter fluid into it it will start then dies right away only runs when i pump the gas then dies again i changed the spark plugs and plug wires...

If it runs when you spray starter fluid in you know the ignition system and all related systems are working. On an '86 you have an in-take electric fuel pump. You need to confirm that it runs and that it is supplying adequate fuel pressure in the system.
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Pickup runs fine when cold 5 minutes later spits and sputters and dies wait a minute starts up runs good for 30 seconds. then dies again

A common problem with Ford products built in the 1980s is the ignition module mounted on the distributor.
You will need to figure out if it is a fuel problem or ignition problem to proceed.
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After 89 Ford Bronco has been running for a few, RPM's seem to be dropping or going sporadic

mine is doing the same rev and drop its is the egr controll soleniod in my 89 ford bronco 5.0 causing a code 22(map and boad vaccume) code 33 (egr malfunction) $31.00 @ orielly auto parts $39.00 Napa Auto parts
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Replaced ignition coil, ran @ 30 seconds , died, wont start ,had code P0351 (Ignition coil A malfunction) fuel pump runs up to pressure & shuts off

The computer is shutting of your fuel because no spark it is a safety feature if the fuel continues with no spark you exhaust converter could fill up with fuel the results not good.So that is why your ECM your cars computer is confederated that way.
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Starts then dies after 30 sec wont start every time takes about 20 min sitting before it starts again changed fuel pump but did not help at all

Have you checked for spark after it dies. It sounds like the ignition module on the side of the distributor is bad.
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96 ford t bird 3.8 starts run about 30 sec and dies after setting for awhile it will do it agion. fule pump wont stay running

two things you can check . look in the trunk on the passenger rear side behind the carpet there is a fuel pump shut off switch make sure the harness wasn't bumped , also there is a fuel pump relay that might be getting hot under the hood near the Fuses on the inner finder well . Good luck
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Truck dying

there are a few things that would cause that wo all i can tell u from what u said is that u need to check for fuel pressure w/ a gauge then look up the specs online. if u lose pressure after start up the fuel pump is bad. but if it stays good as the truck dies then u do have other issues that someone would have to look it over. u could have a ignition module heating up and opening the circuit or an electronic coolant temperature sensor reading -40 or 300 starving or flooding the engine with fuel pull out a spark plug and ground the threads onto something. and check for spark as it dies. if it stops sparking then u need to look into the ignition system. if it does not then you are looking at a fuel problem or a cam positing sensor. which could shut off fuel injector pulse and ignition fire. like i said alot of componets could cause irratic behavior like this ull just have to start off with the basics fuel and fire before you can jump to any conclusions. oh and fuel filters would cause the engine to run bad but not kill it all at once and keep it from starting. one way to rule that out is to turn the key one for 2 secs then off for 6 secs and repeat a few times this turns on the fuel pump for priming iu the system. if it still does not fire up then somethin else is going on other than the fuel filter.
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I have a 95 Maxima I changed the fuel injectors and now the car wont start. Ā so i put the old injectors back and it still wont turn over, Ā It stay on for about 2 sec can anyone help me

I assume you bled off fuel pressure before you installed the injectors. Try this to pressurize the fuel system. Turn the key to "on" position and wait 5 seconds. AT same time, listen carefully for a buzz sound that means the fuel pump is running to pressurize the system. It will shut off after 5 seconds. Then, turn off the key and wait 30 seconds for the computer power relay to shut off. Then, turn the key to "on" again. Thsi will run the fuel pump for another 5 seconds. Repeat 5 times. Fuel system should be pressurized now.
If it doesn't start now, you may have done something while you were changing the injector. good luck
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85 nissan 300zx turbo

alternator and mass air flow meter.
see my solution above.....
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