Intermittent Engine Noise
#1
![Angry](https://www.jaguarforums.com/forum/images/icons/icon8.gif)
Under heavy acceleration, typically around 4500rpm, I am getting fast and loud ticking sound.
I have done some research and found that worn timing tensioners and crack timing chain guides can cause this sound.
I am not sure if it is timing chain slap!
There is a similar sound I hear after the engine has settled soon after starting, when the idle has dropped to normal speed.
There is no clunking sounds to be heard. Just that fast ticking/rattle.
Has anyone else experienced this?
Also, I have been running BOSCH Iridium plugs. Could these be NO NO? Perhaps overheating, not operating, or anything that could potentially cause spark know.
and on that note, can spark knock be heard at high RPM's. I know typically it is at low engine speeds. Any ideas?
I have done some research and found that worn timing tensioners and crack timing chain guides can cause this sound.
I am not sure if it is timing chain slap!
There is a similar sound I hear after the engine has settled soon after starting, when the idle has dropped to normal speed.
There is no clunking sounds to be heard. Just that fast ticking/rattle.
Has anyone else experienced this?
Also, I have been running BOSCH Iridium plugs. Could these be NO NO? Perhaps overheating, not operating, or anything that could potentially cause spark know.
and on that note, can spark knock be heard at high RPM's. I know typically it is at low engine speeds. Any ideas?
#2
#3
#4
Thread
Thread Starter
Forum
Replies
Last Post
FS[Western US]: XJS Wiper Motor Upgrade- 76-88 - Electrolux Style
XJsc-guy
PRIVATE For Sale / Trade or Buy Classifieds
0
09-02-2015 11:43 AM
innzane
X-Type ( X400 )
0
09-02-2015 10:08 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)