2000 Isuzu Rodeo Question Car will not re-start

Tiny
ELLEN SMALL
  • MEMBER
  • 2000 ISUZU RODEO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 50,000 MILES
My Rodeo seems to start fine and runs well-but when I take it on the road, after driving 2-3 hours and stop for gas or rest, the car will not re-start. It makes a noise (turns over) but will not start. Then, if I let it sit for approx. 45 mins, it will start and run normally. I have taken it to a dealer, but they cannot find any problem. But this is happening constantly. Help please!
Monday, May 25th, 2009 AT 10:44 PM

5 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Have you checked to see weather there is no spark or no fuel when this happens?
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Tuesday, May 26th, 2009 AT 10:16 AM
Tiny
ELLEN SMALL
  • MEMBER
  • 3 POSTS
Sorry to show my ignorance, I am not a "car" person. So, not sure what you mean by that question. I stop for gas or a rest, and my car will not re-start. Makes noise like it is trying to turn over, but does not. Always after 45 minutes or so, it re-starts.
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Tuesday, May 26th, 2009 AT 11:02 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Ellen,

When engine could not start, it could be due to lack of ignition sparks or fuel is not being delivered. Test have to be carried out to determine what is missing to proceed with rectification.

The following links shows how to do the test and you should have a look at thsoe applicable topics to understand what needs to be done.

https://www.2carpros.com/kpages/first_things.htm

https://www.2carpros.com/first_things/car_cranks_but_wont_start.htm

If it is ignition sparks related fault, it could be :
1. Engine Control Unit ( Engine Computer)
2. Sensors ( crank sensor, Engine coolant temperature sensor etc.

Does the Check Engine Light show while driving? If yes, go to your local Autozone parts outlet to perform a scan, ( they do it free ) retrieve the Diagnostic Trouble Code (DTC) and let us know the exact code.

Fuel related faults could be :
1. Wiring fault with the fuel delivery system such as loose or bad connections. When loose wire connections have voltage travelling through them, they overheats causing high resistance and this would prevent electrical component from working correctly.
2. Failling relays. They would provide bad contacts when heated.

Check the links and when problem happens, you need to check what is missing to enable us to assist in rectifying the problem.

2.
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Tuesday, May 26th, 2009 AT 12:50 PM
Tiny
ELLEN SMALL
  • MEMBER
  • 3 POSTS
Thanks for your quick repsonse. I have someone looking at it and have given them all your ideas/info to try. I will write back if I need further diagnostic help. Much appreciated.
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Tuesday, May 26th, 2009 AT 2:48 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok thanks let me know how it goes.
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Wednesday, May 27th, 2009 AT 10:15 AM

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