Jump to content

Temp Gauge Jumps With Lights On


jrhone
 Share

Recommended Posts

New problem. Temp gauge jumps all the way to hot when I turn lights on at idle. Goes back to normal when I'm driving. If I switch on the electric fan while driving temp goes all the way up then goes back to normal slowly. It had an upgraded alternator and a new optima red top battery. Ideas?

Link to comment
Share on other sites

yes i did the ground mod to the gauge cluster, but this isnt that it flickers.  Turn the lights on and t goes from1/3 up which is where it normally reads to ALL THE WAY up and stays there.  Lights also dim and brighten when revving.  If I drive, rev the car or turn the lights off the temp gauge jumps back down to normal.  Otherwise with my lights on and stationary the temp gauge is pegged on hot.  

Link to comment
Share on other sites

WoW Sounds like diptheria of the temp gauge, before sellin the car to an unsuspecting faqer, check this. My theria is start with basics, trade out the sending unit, I bought a brand new one and have ended up with my 40 year old part performing and the new in cds neighbs pool. Double check ground to gauge, the big tip though is dimming lights at idle, upgrades are great, if they work right, check all cons to batt, alt and reg. Drive down to homey OReillys and have the alt checked. I put a 320 rad in Riah and have been running hot ever since, will switch back to stock asap. Sounds like reg/alt troubles to me, not throwing right volts, ifin all cons are right

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Upcoming Events

×
×
  • Create New...