Throttle body cooling circuit bypass
#1
Throttle body cooling circuit bypass
After 15 years of trouble free driving, a short 3 mile round trip rewarded me with a coolant leak. Parked in my garage and a few minutes later I heard a pop and loud hissing. Opened the bonnet to be greated by a geyser of coolant spraying vertically from between the throttle body and the supercharger hard enough to soak the windscreen, engine compartment, wings and bonnet. Quickly opened the expansion tank cap to relieve pressure and stop the fountain. Lost about a gallon of coolant. Removed the intakes and looked carefully and cant find the source of the leak yet. If it's the throttle body hose surely there's no harm in capping it off? It's a track car and never sees cold weather. Searches indicate this's a common mod for those in temperate climes. The super charger has ZERO leaks or issues and I'd prefer to leave it alone until I have to. Of course I've no idea if it's the source of the leak.
The following users liked this post:
steve_k_xk (07-28-2023)
#4
Join Date: Jan 2015
Location: Naperville, Illinois USA
Posts: 4,730
Received 2,048 Likes
on
1,372 Posts
#5
The following users liked this post:
steve_k_xk (07-28-2023)
#7
Join Date: Jan 2015
Location: Naperville, Illinois USA
Posts: 4,730
Received 2,048 Likes
on
1,372 Posts
The following 2 users liked this post by kj07xk:
jahummer (07-28-2023),
steve_k_xk (07-28-2023)
Trending Topics
#8
Found the leak, common fail point as I've seen, split throttle body hose right where it bends from the outlet. Trimmed the end off and re-attached and pressure tested, all good. I'll leave it alone for now but if Iever have to pull the super charger, I'll cap off the points where the hoses connect to the manifold.
The following 4 users liked this post by jahummer:
Thread
Thread Starter
Forum
Replies
Last Post
Aj Leduc
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
3
05-27-2021 04:09 PM
al_roethlisberger
XJ XJ6 / XJR6 ( X300 )
5
03-10-2017 01:31 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)