Mud-club

Vehicle & Technical => Discovery => Topic started by: stevepage3 on December 22, 2007, 16:18:48

Title: Discovery Overheating any suggestions
Post by: stevepage3 on December 22, 2007, 16:18:48: Hi

My disco overheated when I was at nash, after letting it cool down we set of for home, about 3 miles in the temperature crept up and the red light started to flash, as I was on a main road I carried on for about a mile trying to find a safe place to stop. As if by magic the temperature then started to drop to about 3/4 on the gauge and the light stopped flashing. we drove all the way home with no further problems.

Any ideas what might be the cause, someone suggested an air lock but how would I go about getting rid of one.

Steve
Title: Discovery Overheating any suggestions
Post by: pux on December 22, 2007, 16:25:19: i would suggest checking your radiator is not full of mud as this will block the air flow and cause your truck to over heat, then if it is give it a good old wash 8) :D
Title: Discovery Overheating any suggestions
Post by: J.D. on December 22, 2007, 16:27:13: Drain the system, refil it and check for any airlocks. Also, open the expansion tank when the engine is cooled and check the coolant level.
Title: Discovery Overheating any suggestions
Post by: ben_haynes on December 22, 2007, 18:22:08: Im with PUX

my disco used to do this and the faster i got the cooler it got

sotake the grill off and wash it or drive it at very fast every where :lol:
Title: Discovery Overheating any suggestions
Post by: Mr Alford on December 22, 2007, 18:47:35: Quote from: "ben_haynes"
Im with PUX

my disco used to do this and the faster i got the cooler it got

sotake the grill off and wash it or drive it at very fast every where :lol:

well if you are on the motorway and the turbo is on constant boost my temperature goes rite up but if i drive it easily it never goes past a quater on the temp gague
Title: Discovery Overheating any suggestions
Post by: thermidorthelobster on December 22, 2007, 18:54:24: You could always backflush the rad with a hosepipe, which'll help clear out any crud that's accumulated inside.
Title: Discovery Overheating any suggestions
Post by: Iain C on December 22, 2007, 19:32:33: Quote from: "pux"
i would suggest checking your radiator is not full of mud as this will block the air flow and cause your truck to over heat, then if it is give it a good old wash 8) :D

But don't do what I did to my old S3...I pressure washed it and blew most of the somewhat rotten fins out!!! :(
Title: Discovery Overheating any suggestions
Post by: crazymac on December 22, 2007, 20:34:23: As above, check it all out!

but out of interest, do you have aircon? If so, the aircon fans are set to come on when the engine gets too hot!! so that would account for why it cooled for you, which would also suggest that the viscous fan is FUBAR :cry:
Title: Discovery Overheating any suggestions
Post by: Range Rover Blues on December 23, 2007, 14:05:20: Sounds like an airlock that's cured itself, possibly built up due to the angles you were driving at :?