[v12-engine] temp gadge false reading

is it possable for your tempreture gadge to give you a false
reading. The reason I ask is I m getting high readings (up to 100c)
then drop down to 82c in seconds the gadge just drops fast then up
again. I checked the car but it dont seem to be hot.I have had a
overheating problem not so long ago which turned out to be crap
that had built up between the oil cooler and rad. I replaced both
thermostats and cleaned the rad out replaced it all and it was fine
till yesterday. one other thing I have noticed it tends to go up if
i m on the motorway any help would be great
regards shaun jaguar series III V12–
jaguar XJ12 soveriegn
telford, United Kingdom
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People on the XJ-S list often report poor contacts on the
instrument cluster causing problems like this. If the
series III uses the same technology you have to remove the
cluster and carefully clean under all instrument contacts
to the flex-circuit on the back, and also the grounds.

Ed Sowell
76 XJ-S
http://www.efsowell.us/ed/myJag.html

is it possable for your tempreture gadge to give you a false
reading. The reason I ask is I m getting high readings (up to 100c)
then drop down to 82c in seconds the gadge just drops fast then up
again. I checked the car but it dont seem to be hot.I have had a
overheating problem not so long ago which turned out to be crap
that had built up between the oil cooler and rad. I replaced both
thermostats and cleaned the rad out replaced it all and it was fine
till yesterday. one other thing I have noticed it tends to go up if
i m on the motorway any help would be great
regards shaun jaguar series III V12

Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !