Add me to the list of needing head gaskets!
Well my time has come it seems. My 2004 Disco 2 with 106,000 miles just gave up its head gaskets. Here are my symptoms:
1) Noticed a slow creep up of temps with AC running on a hot day (80+ degrees outside)
2) Turning AC off seemed to settle the truck temps down
3) Noting this a few times, I decided to:
a. replace water pump
b. replace fan
c. replace fan clutch with heavy duty
d. move to 180 degree thermostat
e. replace various coolant hoses
f. complete flush of rad and coolant system
g. vacuum replacement of dexcool
h. replaced serpentine belt
i. checked several times for any air-pockets, which found none after settling and cooling off overnight
I triple checked all the installation - the hoses are hooked up correctly to the thermostat; serpentine belt on correctly; fan spinning correct way.
Sadly after this overhaul, the over-heating actually seemed to then be worse, coming on even quicker. I obtained a new scan-guage unit to watch temps more accurately and saw them blow through the 200 mark and up into 230....now 240....yikes - 250! I quickly turned off the AC and blasted the defroster on high heat to dissipate the engine temps and that would bring it back to 225ish so I could get it home.
Last note, my condenser fan was seized and had blown the fuse. Not sure how long this was not functioning but Im sure this added to the over-heating issue and AC efficiency...
Last little bit of insult to injury: As I was trying to drill out the rusted screws for the AC Condenser fan, the drill bit slipped and I went right through the condenser itself, exploding that in my general direction. Now let's add a new condenser and that install to the mix!
Any other thoughts as to the overheating issue - sounds like a clear case for head gaskets? Hopefully not a slipped sleeve!
**2004 Discovery 2**
(Amigo free since March 28, 2018)
**1994 Defender 90**
**1997 Defender 90 SW**
Last edited by DiscoGreg; 07-12-2019 at 08:05 PM.