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My engine will not start up?

Tiny
SCOTT SEYMOUR
  • MEMBER
  • 1989 ISUZU TROOPER
  • 2.8L
  • 4 CYL
  • 4WD
  • MANUAL
  • 150,000 MILES
Ran great, then started and stopped. Did that two times, now nothing. Changed filter and fuel pump and relay. Still nothing. Help please.
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Tuesday, October 31st, 2017 AT 4:56 PM

30 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
When you say nothing, is the engine at least cranking? If so, see if it starts with staring fluid for a couple seconds. If it does, the problem is fuel related. If it does not, then check to see if there is spark to the plugs. At least that way you will know which system to focus on first.
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Tuesday, October 31st, 2017 AT 7:46 PM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
Tried starting fluid. No good. Checking plugs tomorrow. And yes it turns over fine. Something just quit working. I drove it to the store and when I got back in. It started and shut off.
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Tuesday, October 31st, 2017 AT 7:53 PM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
If the sensors shut off fuel system, how does it know when I have fixed the problem?
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Thursday, November 2nd, 2017 AT 7:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
If it doesn't start with starting fluid, then it is ignition related and not fuel. Check to see if you are getting spark. Let me know what you find. Also, if there is spark, make sure it is a blue snapping spark and not orange or white in color.
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Thursday, November 2nd, 2017 AT 6:39 PM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
Ok. Still trying to figure out how to do that by myself
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Friday, November 3rd, 2017 AT 11:56 AM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
Ok when I turn the key on, I can hear a click in the engine compartment near the alternator
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Friday, November 3rd, 2017 AT 1:47 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
When you hear the click is the engine cranking over?
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Sunday, November 5th, 2017 AT 4:10 PM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
No. Before I turn the starter on. I hear a definite click
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Sunday, November 5th, 2017 AT 4:39 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
It sounds like the starter has gone bad. Lets use a test light and see if the starter solenoid receives a signal when the ignition key is in the crank position.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

This guide will show you how check out toward the bottom.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please let us know what happens.

Cheers, Ken
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Monday, November 6th, 2017 AT 10:52 AM
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
No. Starter works great. Engine turns over easily. Just no ignition. Jumped fuel pump because lines are dry. Next I'll jump the pump relay.I have no diagnostic tools so doing it old school
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Monday, November 6th, 2017 AT 11:10 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
I would try replacing or jumping the ECM reply here is its location. (Below)
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Monday, November 6th, 2017 AT 11:28 AM
Tiny
SUSANSTROOPER
  • MEMBER
  • 1 POST
  • 1989 ISUZU TROOPER
  • 6 CYL
  • 4WD
  • MANUAL
  • 200,000 MILES
My 89 trooper quit the other day. We had a broken wire on the coil we fixed that. It still won't start it has the throttle body fuel injection we have fuel to the body but nothing inside. We feel it is something eletrical the coil was replaced a few months ago battery and starter are new and it trys to start but no fuel/fire?
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Thursday, January 21st, 2021 AT 11:23 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure if its within specs and also if the injectors are pulsing
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
Mine ran great, then would start but die. Changed filter and fuel pump. Still nothing. Need help
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
When engine stalled, are you able to restart immediately?
Does keeping your foot on the accelerator pedal keep engine running?
Any repairs carried prior to this occurring?
Which engine do you have?
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
It would start then die. No matter what I did with gas pedal. 89 Isuzu trooper. 4 cyl
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
Now it tries to start but not for long. Could it be in the ECM?
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Can you keep it running with starting fluid? If so, it isn't getting fuel or proper fuel pressure. Since you replace the pump, have you checked fuel pressure? Are you sure there isn't a problem with the fuel pressure regulator?
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
SCOTT SEYMOUR
  • MEMBER
  • 13 POSTS
No I'm not sure of pressure
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
https://www.2carpros.com/articles/car-cranks-but-wont-start

Check out the above link on how to go about diagnosing the cause.

Let us know how it goes or if you need further assistance.
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Thursday, January 21st, 2021 AT 11:24 AM (Merged)

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