1997 GMC Jimmy wont start getting fuel to the 2 lines behin

Tiny
BRANDY12505
  • MEMBER
  • 1997 GMC JIMMY
Engine Performance problem
1997 GMC Jimmy 6 cyl Two Wheel Drive Automatic 159k miles

my truck is getting fuel all the way up to the 2 metal lines behind throttle body but not to the throttle body itself if I prime it it runs till that gas is gone then is dry again. No codes showed up when mechanics ran a diagnostic test on the truck. Pressure is good. Pump and filter are new
Do you
have the same problem?
Yes
No
Thursday, August 7th, 2008 AT 4:19 PM

9 Replies

Tiny
MASTERTECHTIM
  • MEMBER
This is the vortec engine right? Or is it a throttle body injected engine? Does the check engine light come on when the key is in the run position?
Was this
answer
helpful?
Yes
No
Thursday, August 7th, 2008 AT 7:43 PM
Tiny
BRANDY12505
  • MEMBER
I think its the throttle body but not sure it is the original engine if that helps it is the s15 jimmy the check engine light does come on but goes bk off at the normal time it only lights up when u first turn the truck on as with all the other dash lights
Was this
answer
helpful?
Yes
No
Thursday, August 7th, 2008 AT 8:02 PM
Tiny
MASTERTECHTIM
  • MEMBER
There is a huge difference between the two so just to make sure we are both on the right page look at your vin number and give me the eigth digit. It should be a z or w or x
Was this
answer
helpful?
Yes
No
Thursday, August 7th, 2008 AT 8:11 PM
Tiny
BRANDY12505
  • MEMBER
Truck is at the shop with all my information however after googling i have a throttle body this pic is identical to what engine is in the truck


http://www.2carpros.com/forum/automotive_pictures/224748_mxgacx03a_jimmy_fan_shroud_1.jpg

Was this
answer
helpful?
Yes
No
Thursday, August 7th, 2008 AT 8:38 PM
Tiny
MASTERTECHTIM
  • MEMBER
Ok that is what I thought it was. Your truck has 6 injectors under the plastic housing that the throttle body sits on. You need to or have them check for injecotr pulse which is having them check for power at each injector and a flashing ground pulse from the computer. Most likely the computer is not firing the injectors for some reason. Does your theft light on dash come on and then flash or does it just go out. Also does the check engine light come on with the key in the run position?
Was this
answer
helpful?
Yes
No
Friday, August 8th, 2008 AT 6:01 AM
Tiny
BRANDY12505
  • MEMBER
They check engine light just comes on at begining of start up and goes back off the alarm however is weird on this truck if they key is left in the ignition or iof the truck is not locked u can not just start the car up you have to lock and then unlock the doors again in order to start the truck half the alarm system doesnt work though such as the horn part
Was this
answer
helpful?
Yes
No
Friday, August 8th, 2008 AT 9:07 AM
Tiny
MASTERTECHTIM
  • MEMBER
Dos the theft light blink or does it go out?
Was this
answer
helpful?
Yes
No
Friday, August 8th, 2008 AT 9:52 AM
Tiny
BRANDY12505
  • MEMBER
The theft light on the dash with the check engine and all goes out after a few secs the aftermarket theft light in dash/window flashes continueously
Was this
answer
helpful?
Yes
No
Sunday, August 10th, 2008 AT 8:38 AM
Tiny
MASTERTECHTIM
  • MEMBER
This is a little more complicated that ordinary and is not easy for a skilled tech to figure out, you must start by checking for power at the fuel injectors then check for a flashing ground trigger for them and find out what is missing.
Was this
answer
helpful?
Yes
No
Sunday, August 10th, 2008 AT 4:41 PM

Please login or register to post a reply.

Recommended Guides