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Posted on Dec 08, 2009
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97 f250 started it up and it ran for 5-7 mins and cut off. i changed the dist cap, rotor, and coil..still wont run..fuel pump ran

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  • Master 334 Answers
  • Posted on Dec 08, 2009
Anonymous
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Joined: Nov 07, 2009
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It might be a crank sensor... if you have access to a scanner ..that will verify it for you

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0helpful
1answer

My 97 grand cherokee cranks but wont start any ideas

Check fuel pressure. If ok then go to ignition. If low fuel pressure, then its either:
  • Fuel filter
  • Fuel pump relay
  • Fuel pump
Ignition:

  1. Coil
  2. Ignition module
  3. dist. cap and rotor button if equipped. (give a good tuneup)
90% sure its fuel related
1helpful
2answers

It cut off a and will not start. I changed the coil,dist. cap, rotor. It is getting fuel

Just on a hunch, it might be the anti theft system. Check out this link and read up on these systems. http://vatspasslockpasskeysecurityhelp.yolasite.com/
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97 GC 4.0 starts right up , runs fine for about 10 seconds then it goes into misfire mode. I have replaced the crank sensor, pickup coil in dist, 2 sets of wires ,2 sets of plugs, new dist cap , rotor...

Well, aside from the O2 sensors, the throttle position sensor and temp sensor, looks very much like you have a totally new system there.
I assume you got codes for all those item from a system scan?
I suggest that you "ring out" the wiring harness and check every fuse in the engine compartment and in the passenger compartment. If you have continuity and no cross over in the wiring, pretty good chance that the engine computer is bad.
One thing...your fuel pressure seems to be a bit high...I didn't look it up but I'd expect it to be around 35psi to possibly 40? Do the plugs come out clean or black?
0helpful
1answer

97 dodge dakota. 2.5 , 5 speed, 2wd, 110k . I have replaced - dist. cap, rotor,wires, plugs, fuel pump, fuel filter, # 4 injector, tps, crank pos sensor, air filter. Truck will start and run fine until...

How about the pick up coil in the distributor? A trick we used to use back in the day was to tap the distributor housing with a hammer, key word tap. If the engine missed or stalled than the pick-up coil was replaced.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

0helpful
3answers

I just changed the fuel pump, crank senser, dist. cap, plugs and wires , coil,and button and it still wont start

This is a pretty broad question. Sometimes throwing parts at a problem works, sometimes not.

Engines need 4 things to run: fuel, air, compression, and ignition.
Fuel: Need to test that line pressure is within spec, injectors are working (resistance is usually 12-14 ohms)
Air: Check for proper vacuum, air filter, air path
Compression: usually does not need checked, but if there is oil in the coolant, coolant in the oil, or oil in the intake or exhaust I would check this
Ignition: simple spark test
0helpful
1answer

I started truck this morning. it ran about 5-7 mins and shut off. will not start back up but will turn over perfect. i changed the dist. cap, rotor inside the cap, and the starter coil with no success....

if you do not hear the fuel pump come on when you turn on the key recheck the fuel pump relay and see if there is power at the pump when you turn on key if so the pump is bad
4helpful
2answers

97 jetta wont start

Change the crankshaft sencer.
0helpful
1answer

944 cuts off after 5 min.

Sounds like fuel relay located in fuse/relay box. This is a common problem on the 944, always good idea to carry a spare.
Todd
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