D24T.com  

Go Back   D24T.com > Technical Discussion Area > Body and Interior
Register FAQ Community Calendar Today's Posts Search

Reply
 
Thread Tools Display Modes
  #1  
Old 06-13-2017, 06:16 PM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: New York
Vehicle: 1986 Volvo 745 TD
Posts: 903
Default Coolant temperature gauge in cluster/dash.

I know, first I should check wiring (8pin connector) and also look at wiring diagrams etc...

The repair:

The corroded and stuck fan at the very front has been disconnected then removed. New fan is not yet bought/found.

The problem:
Coolant temperature gauge in the dash doesn't seem to work now.

The fan has been thrown out, I cant reinstall to re-check the gauge now. Ideas?
Thank you.
Reply With Quote
  #2  
Old 06-13-2017, 10:17 PM
ngoma ngoma is offline
Supporting Member
 
Join Date: Nov 2009
Posts: 1,393
Default

Is the needle staying in the resting (off) position?

Mine sometimes sticks in the resting position. A good smack on the dashboard will unstick it for that session. The fix for that is to open up the instrument panel and carefully add a small drop (likely from a syringe) of Triflow or similar to the pin the needle gauge pointer mounts to. Try not to drip any lube anywhere else in the clean matte black inner panel!

Other easy troubleshooting is to substitute to the other (rear) temperature sensor temporarily (use a small gauge jumper wire) and see if the gauge responds normally. The two temp sensors are identical.

Otherwise the instrument panel wire traces are subject to cold solder joints. Close examination with a magnifying glass and strong light source should help identify any in the area of the temp. gauge.
__________________
1985 744 gle d24t
1985 745 gle d24t
Reply With Quote
  #3  
Old 06-21-2017, 06:50 AM
R.Mojica R.Mojica is offline
Senior Member
 
Join Date: May 2013
Location: Rockland county, NY
Vehicle: 85 745 D24Tic M46
Posts: 190
Default

that fan has nothing to do with the temp gauge. I removed the one in my white car and never had any issues. it still spun freely if you want to install a new one but its really only for A/c for the condenser.
__________________
99 Ram 2500 24V Cummins 199k
85 745 TD M46 170k (silver)
85 745 TD M46 251k (white) Holset HY35, 4" turbo back, n/a intake manifold, intercooled, GTD nozzles set to 2400psi @18psi. super pumped
86 745 TD auto 254k sold
Several other current gasser Volvos.
67 122S 72k (barn find)
89 760 TIC for sale non running.
93 850 5spd 396K.
94 850 Turbo (race car) 12.55@112.4
95 850 T-5R wagon yellow 199k
04 V70R Titanium/Atacama M66 245k
04 S60 2.5T awd 255k
06 XC90 V8 305k
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 04:40 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2024, vBulletin Solutions, Inc.