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Cranks wont start

Tiny
BRIAN D RUMSEY
  • MEMBER
  • 2004 ISUZU RODEO
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
The vehicle cranks but wont start. I have replaced both cam sensor. The crankshaft sensor and battery. Per the computer I have 63psi fuel pressure. I can crank it over but wont start. Every now and then it will start for just a second, but wont stay running. I have tried starting fluid and still will not start. Timing belt was changed 20,000 miles ago. No codes in the computer. Cannot be sure about the security features. I have tried both keys and still no start. I have always said I am a pretty good mechanic, but this one is kicking my butt.
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Friday, August 19th, 2016 AT 4:25 PM

30 Replies

Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Also, I know it is not the chip in the key. I tried a non chipped key and it wont even turn over then.
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Friday, August 19th, 2016 AT 6:00 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Have you checked for spark yet?
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Friday, August 19th, 2016 AT 7:46 PM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Yes and it is hit and miss. When there is spark it starts right up. I have the ECM at a re-builder now having it checked.
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Saturday, August 20th, 2016 AT 8:02 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Does your code reader show live data like engine rpm?
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Saturday, August 20th, 2016 AT 8:20 PM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Yes and it does not show any rpm's while cranking. Which is why I decided to have computer checked after replacing the crankshaft sensor.
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Sunday, August 21st, 2016 AT 12:31 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Alright let me know when you get the computer back and what they said about the computer.
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Sunday, August 21st, 2016 AT 8:01 AM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Will do.
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Sunday, August 21st, 2016 AT 9:20 AM
Tiny
RENEE L
  • ADMIN
  • 1,257 POSTS
Please let us know so it will help others
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Tuesday, August 30th, 2016 AT 9:14 AM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Computer was tested and the processor was bad. But since it is isuzu they can't rebuild it. I got another one online but I have not gotten the chip in the key programmed so I still can't start the car
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Tuesday, August 30th, 2016 AT 10:45 AM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Getting really frustrated
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Tuesday, August 30th, 2016 AT 10:46 AM
Tiny
RENEE L
  • ADMIN
  • 1,257 POSTS
Okay lets start over from the top here is a guide that will help you.

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

Let us know what you find

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Tuesday, August 30th, 2016 AT 10:48 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Are you sure the key has a chip?
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Tuesday, August 30th, 2016 AT 10:13 PM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Yes. It is chipped. Unfortunately
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Wednesday, August 31st, 2016 AT 4:37 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Some lock Smith's have the key programmers you should call around.
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Wednesday, August 31st, 2016 AT 7:21 AM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Have to wait till Friday and will be doing that.
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Wednesday, August 31st, 2016 AT 1:46 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Let us know how you make out.
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Wednesday, August 31st, 2016 AT 7:22 PM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
Ok new computer is back and programmed to the keys and checked out good. But still no spark at the plugs
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Monday, September 12th, 2016 AT 5:35 PM
Tiny
SATURNTECH9
  • MECHANIC
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Do you have a code reader that can read live data?So we can see if there is a rpm signal while cranking the engine?
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Monday, September 12th, 2016 AT 7:38 PM
Tiny
BRIAN D RUMSEY
  • MEMBER
  • 13 POSTS
No mine won't read rpms
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Tuesday, September 13th, 2016 AT 5:27 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Do you have any current codes?
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Tuesday, September 13th, 2016 AT 4:16 PM

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