Question about Isuzu Pickup

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2000 isuzu box truck with chevy 350 motor randomly shuts off. I have replaced the ignition switch, rotor, distributor, wires, pick up, modual, fuel pump and fuel pump pig tail and many more. There seems to be no rhyme or reason to it. It will run around town for a couple hours then come back in to the warehouse to be reloaded for an hour then leave for delivery and go a mile and shut off when driving down the road at normal speed. We let it sit for a few minutes and it starts up and sometimes runs for the rest of the day and sometimes 5 minutes.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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motor1258
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SOURCE: fuel pump not staying on 1993 k1500 350

Some GM products also incorporate the oil sender switch into that circuit for fuel pump, so that in case of an accident, engine shuts off, oil pressure drops, in turn, shuts off power to fuel pump. May be worth a look at what your getting for oil pressure, as well as checking switch/sender.

Posted on Feb 13, 2009

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SOURCE: scanner code 327, EVP/EPT voltage iow

fuel pump relay switch which will cause fuel pump to also become week had same problem for three yrs. My husband, every mecanic in country thought i was crazy, cuz never did it and i mean never when I took it to shop, was so flustrating, untill finally one day my husband was with me when it done it. I said finally damn car tryed make me think I was crazy, i said believe me now, said yeah, **** He drove it all time to but never in those three yrs did it ever do it to him, me on the other hand everytime i drove it just about, so i think he thought i was crazy or just wanted a different car and im like no just want mine fixed so i didnt have to take it for a walk everyday instead i would like to driving it cuz everytime i left the house in those three yrs i was usually walking back, or hitching a ride, my car walked me very often lol, That was 5 yrs ago have never had a problem with the car since, still driving it today.

Posted on Apr 19, 2009

  • 1 Answer

SOURCE: engine shut down after 15miles then won't start for half hour

just went thru the same think wit a s 430 it was the crank position sensor . 60 bucks at auto zone and it took me 5min. 2 install if u need help feel free to call me 918 808 9706 chris

Posted on May 15, 2009

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SOURCE: ford festiva just dies while going down the road

Faulty Fuel pump will do it or breather pipe on fuel tank not breathing.
Coil overheating and braking down when hot ..when cools down away it goes again????
it does sound that its due to overheating BUT a another alternator or distributor wasent needed as nither would give you the problem..So check all above and let me know how you get on Ron

Posted on Oct 20, 2009

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SOURCE: 2000 Grand AM GT Shuts off while driving

What you should do is check for spark when the vehicle stalls.If you have no spark then you probably have a bad ignition module.The other thing is You didn`t mention if the check engine light is coming on.If it is then have the codes read.Even if it is not you should still check the codes.Sometimes the computer will have a code and the light will not come on.This could give you a clue as to what could be causing the engine to stall.You might also want to check your fuel pressure just to make sure it is good.The pressure should be 52 - 59 psi.Hope this helps.Good luck.

Posted on Dec 20, 2009

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