S-Type 3.0 "misfire"
#21
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Can you please elaborate where you found the vacuum leaks? For the next guy with a similar problem, it would be helpful to suggest checking those same locations.
#22
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There were three vacuum leaks: intake manifold at the rear; small pipe that connects into the main intake hose toward the front of engine bay; and where the main intake hose connects onto intake manifold after the MAF sensor. The final one seemed to be the worst - every time the easy start spray hit that, the fuel trims took a massive dive! Weird thing was that the connection actually didn't seem particularly loose, but I think the jubilee clip was just a bit old and obviously wasn't doing enough. New big jubilee clip nice and tight did the job.
The following 2 users liked this post by Slack85:
kr98664 (07-02-2023),
S-Type Owner (07-02-2023)
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