Go Back  Jaguar Forums - Jaguar Enthusiasts Forum > Jaguar Models ( Modern ) > X-Type ( X400 )
Reload this Page >

New heater plug harness & maybe to replace glow plugs

X-Type ( X400 ) 2001 - 2009
Sponsored by:
Sponsored by:

New heater plug harness & maybe to replace glow plugs

Old 03-28-2019, 06:23 PM
wdf is offline
Junior Member
Thread Starter
Join Date: Mar 2019
Location: Wisbech
Posts: 11
Received 1 Like on 1 Post
Default New heater plug harness & maybe to replace glow plugs

My glow plug lead is starting to "melt" where the threaded terminal is..... its done 161k miles and each time you switch the ignition on, the rust/corrosion between the post, nut and terminal causes resistance ...makes the post get hot and the insulating plastic burn.... anyway, no issues with that, one from eBay for 16 or brand new for 45+VAT.... though.... my question is.... while I am stripping all this out, and given that new (genuine) glow plugs are now half price at 10 a go.... is it worth renewing the glow plugs anyway.... I mean, its 14 years old and done 161k mile.... given I have to strip everything out to replace the harness, is it worth renewing the plugs? what is the life expectancy? ….note that this last winter when starting from cold it did sound a little "rough" even after using the plugs... so am thinking one maybe down anyway.... so for 10 a pop might be worth doing the whole lot...

Last edited by wdf; 03-28-2019 at 06:26 PM.
Old 03-28-2019, 07:56 PM
Veteran Member
Join Date: Mar 2017
Location: Utah
Posts: 2,897
Received 359 Likes on 335 Posts

Expected life expectancy of glow plugs are 100,000 (U.S.) miles.

The following are some of the signs that you will notice when it is time to have your glow plugs replaced:
The diesel vehicle is hard to start during cold weather
There is more smoke coming from the vehicle than normal
The diesel engine is misfiring on a regular basis
Decreased fuel efficiency
The following users liked this post:
wdf (03-29-2019)
Old 03-28-2019, 08:02 PM
Thermo's Avatar
Veteran member
Join Date: May 2008
Location: Great Mills, MD
Posts: 11,763
Likes: 0
Received 2,839 Likes on 2,401 Posts

WDF, for the cost of the glow plugs, I would say to replace them. It sounds like they are at a minimum getting weak. Besides, if you are half way there, it will make any work you would have done later, that much easier.
The following users liked this post:
wdf (03-29-2019)
Related Topics
Thread Starter
Last Post
X-Type ( X400 )
07-14-2015 05:36 AM
X-Type ( X400 )
10-10-2014 03:14 AM
X-Type ( X400 )
02-17-2014 04:09 PM
S-Type / S type R Supercharged V8 ( X200 )
01-01-2013 07:12 PM
X-Type ( X400 )
02-23-2012 11:43 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Search this Thread
Quick Reply: New heater plug harness & maybe to replace glow plugs

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: