Go Back   Team-BHP > Buckle Up > 4x4 & Off-Roading > 4x4 Technical


Reply
 
Thread Tools Search this Thread
Old 2nd August 2014, 10:37   #1
BHPian
 
Join Date: Mar 2010
Location: Mumbai
Posts: 139
Thanked: 58 Times
Default Jeep: Problem with glow plugs

For some bizarre reason the engine pre-heat system on my 550 is acting up {stock XD3}.
I've been relying on a 'hacky' way to get the job done - string a wire from the battery +ve directly to one glow plug end, heat, run back, and start....

Have tried to eliminate the obvious as below:
1. Checked each of the 4 glow plugs - each one looks good
2. Checked the glow plug loom - nothing missing there
3. Swapped the heater timer box on the circuit with a new one

Short of the above the only other thing that I can think of, is to have a direct heater button & coil set up (eliminate the timer) - the ol' way - I think the timer cuts off too early before the pre-heat job is done..

Help! not sure what's missing
lugnut is offline   Reply With Quote
Old 2nd August 2014, 11:31   #2
BHPian
 
Shwetank's Avatar
 
Join Date: Jul 2014
Location: Allahabad
Posts: 86
Thanked: 237 Times
Default re: Jeep: Problem with glow plugs

Quote:
Originally Posted by lugnut View Post
For some bizarre reason the engine pre-heat system on my 550 is acting up {stock XD3}.
I've been relying on a 'hacky' way to get the job done - string a wire from the battery +ve directly to one glow plug end, heat, run back, and start....

Have tried to eliminate the obvious as below:
1. Checked each of the 4 glow plugs - each one looks good
2. Checked the glow plug loom - nothing missing there
3. Swapped the heater timer box on the circuit with a new one

Short of the above the only other thing that I can think of, is to have a direct heater button & coil set up (eliminate the timer) - the ol' way - I think the timer cuts off too early before the pre-heat job is done..

Help! not sure what's missing
From your description, it appears that the vehicle does start with your 'hacky' procedure. You can check the main (+ve) going into the heater relay for breaks. This would be an 8mm wire from the battery.
Shwetank is offline   (1) Thanks Reply With Quote
Old 2nd August 2014, 11:44   #3
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,495
Thanked: 6,772 Times
Default re: Jeep: Problem with glow plugs

Yup seems like the wiring that connects heater control module to power or to the plugs which is the culprit.
Jaggu is offline   (1) Thanks Reply With Quote
Old 4th August 2014, 22:36   #4
Newbie
 
Join Date: Mar 2014
Location: Chandigarh
Posts: 24
Thanked: 7 Times
Default Re: Jeep: Problem with glow plugs

If the wiring was changed from the original, maybe a fuse was added. Try and check if the fuse is the culprit.
Mudcat is offline   Reply With Quote
Old 5th August 2014, 21:55   #5
Senior - BHPian
 
DirtyDan's Avatar
 
Join Date: Jul 2007
Location: Dharamsala
Posts: 1,781
Thanked: 694 Times
Default Re: Jeep: Problem with glow plugs

Are you sure there is a glow plug problem at all? As opposed to, say, a starter motor problem, an air intake problem, a fuel line problem?
DirtyDan is offline   (1) Thanks Reply With Quote
Old 18th August 2014, 21:04   #6
BHPian
 
boeuff's Avatar
 
Join Date: Mar 2008
Location: Blr
Posts: 176
Thanked: 63 Times
Default

Could be low engine compression
boeuff is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Brand new Swift ZDI : Glow plugs indicators not working manjubp Technical Stuff 10 13th January 2012 12:31
Punto console indicating "check glow plugs". ironshark Technical Stuff 4 13th December 2010 12:08
Should i replace all four glow plugs ? rajivanoj Technical Stuff 14 26th September 2010 12:18
Pulstar plugs! Are the spark plugs obsolete? Is it a scam? Sankar Technical Stuff 8 4th October 2009 01:58
Glow Plugs for Indica V2 fariborzpz Technical Stuff 4 1st September 2009 13:40


All times are GMT +5.5. The time now is 14:23.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks