Question about 1996 Volvo 960
If it was over heating before the thermostat was replaced you may have a problem with blocked cores in the radiator. Several tests to do to isolate the fault. Have a coolant a pressure test done to determine if any leaks. Have a compression test done to check for head gasket and cracked head. have a flow test done on the radiator to check for blocked cores. Check that the thermostat was installed correctly ( right way up) Check that the fan is coming on and if viscous fan hub then check that the hub is operational ( Over heating at lights)
Posted on Dec 31, 2013
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Do the air purge test below.
The fins/turbine on water pump can be totally worn out.
When the car is completely cool,check the electric fan(s) for smooth rotation.
Clean/check/change the thermo sensor,contact and wire.
Excavate air pocket in coolant system / check for head gasket leak
This test will kill two birds with one stone.
MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!
RAN THIS TEST IN A WELL VENTILATED AREA ONLY!
You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!
Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .
Top of the coolant reserve tank
Let it ran for 10-15 minutes.
Monitor for air pockets escaping from coolant reserve tank.
Small amount of bubbles is OK at 1-5 minute mark
After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.
If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.
Give the thermostat host few gentle taps.
If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.
Let engine cold down and top off coolant reserve tank.
Start monitor for coolant lost
A coolant flush is require every 2 years or 24,000 miles.
I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.
Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.
Please post more information by clicking the comment link on the top right corner.
DON'T FORGET to RATE ME if my tip is helpful to you!
Posted on Dec 05, 2009
first you need to check your cooling fan working you can do so by turning your a/c on if your a/c is working properly/if so turn off a/c and let car sit till overheat and see if fan kicks in.if not possible your fan circuit electrical or sensor related/and also check for air in your system bleed system good check for circulation open radiator cap.
Posted on Jan 13, 2010
Tips for a great answer:
Oct 22, 2014 | 2002 Dodge Intrepid
Jan 10, 2014 | Cars & Trucks
Dec 26, 2013 | 2000 Pontiac Grand Am GT
May 08, 2012 | 1995 Toyota 4Runner
Nov 14, 2011 | 2002 Chevrolet Malibu
Sep 23, 2011 | 2000 Volvo V40
Apr 29, 2010 | 1995 Volvo 850
Feb 12, 2010 | Volvo 240 Cars & Trucks
Jan 30, 2010 | 1997 Cadillac DeVille
130 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: