Vehicle & Technical > Suzuki
cooling system on a jimny - Problems
Grinch:
Ok. it all started with the missus complaining that the heaters in her 2001 Jimny S/T werent that good. I checked them against mine and the heat from them is weak.
I flushed the heater core with a hose and it didnt appear blocked. what i have found tho is that the radiator is not getting hot and bottom hose is cold too. the top hose heats, but not as hot as it should.
If i squeeze the top hose the water level in the rad changes. if i squeeze the bottom hose the water level in the rad changes. if i squeeze either heater hose the water level changes, som in not suspecting a blockage in any hose or in the radiator or block.
We have had it in to the garage to get the thermostat changed (i just know those bolks would sheer i i touched them) and were tols that the wrong thermostat had been fitted and the seal was in backwards, but the rad still doesnt heat up.
Any ideas as the garage is now talking about replacing the rad, but im not convinced thats the solution.
Cheers
Matt
ben_haynes:
Try bleeding the system it might just be an air lock,
Evilgoat:
Try bleeding as Ben says, if not backflush the lot, rad, block and heater matrix. Then take out the thermostat and check it. Make sure its closed when you pull it out, then dunk it in boiling water (use string to suspend it) should see it open.
Alternative is a blocked rad or worse obstruction in the block.
Grinch:
cheers fellows :)
Matt
Grinch:
Well took the day off work yesterday to have a look at this. The Stat is fine and working as it should. Ive flushed the heater matrix, the block, the rad and any tube i can get my hands on. All flowed through without a problem. the rad is now getting warm, but not hot, and the stat is opening and allowing flow through the rad, so the cooling system seems to be working as it should. the gauge doenst go above 1/2 way.
But the heaters are still weak >:( Ive checked the selector on the air box, and it is moving through all of its range and you can hear it blocking and unblocking the passages inside. The heater hoses are both hot to the touch once the engine has warmed up. oh and the amount of air flow through the vents doesnt change when flipped between hot and cold.
Totally stumped now.
Any Ideas anyone??
Matt
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