engine temps
#21
Ditto what Savanna said, do not drive it until you look at it. That gauge in the dash is an idiot light gauge, if it is reading that high you engine is running at around 230ish F. If you keep running it like that your best case scenario is having to replace the head gasket.
#22
Join Date: Jan 2012
Location: East Coast Central Jersey/PA area
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#23
I have read the mixing dexcool with other coolant is not a good idea, I am afraid that this might have happened, a local indy was suppose to flush my dexcool coolant and change the T-Stat. The T-stat has been changed but the coolant was still the orange one, he states he flushed it with the same color coolant, i am afraid he might have topped it it off after thermostat change with water or other type of coolant. This is the reason why I want to flush it myself this time.
Can anybody tell me if I could leave the flush in for a day or so? I will be changing the T-stat to the soft spring low temp one anyway.
#24
Follow direction on the flush product exactly.
To check fan clutch - with engine cold, not running - spin fan and release. Should go maybe 1/4 to 1/2 turn. Should feel like peanut butter inside the clutch. Then warm up truck to normal temp, and turn off. Spin by hand and release, again it should stop in less than 1 revolution. If it freewheels, the clutch has lost the fluid inside, and needs to be replaced, write up tech section for a $50ish Chevy cross over.
Don't try the shop trick of grabbing the fan to see if you can stop it while engine running - too many mechanics are called "Stubby". Also check your belt route (shown in tech area). Like Discover Discovery Maintenance Tips, Accessories, Parts & More at Roverparts.com
To check fan clutch - with engine cold, not running - spin fan and release. Should go maybe 1/4 to 1/2 turn. Should feel like peanut butter inside the clutch. Then warm up truck to normal temp, and turn off. Spin by hand and release, again it should stop in less than 1 revolution. If it freewheels, the clutch has lost the fluid inside, and needs to be replaced, write up tech section for a $50ish Chevy cross over.
Don't try the shop trick of grabbing the fan to see if you can stop it while engine running - too many mechanics are called "Stubby". Also check your belt route (shown in tech area). Like Discover Discovery Maintenance Tips, Accessories, Parts & More at Roverparts.com
#25
some of those flushing agent are very strong and not only with the block the t-stat they can also block the heater core.
Most state to shut the heater off before flushing, well with all of LR wisdom there is no way to shut the heater off.
You "may" want to flush it using bottled water and white vinegar either way you will probably either have to remove the t-stat or replace it when done.
Most state to shut the heater off before flushing, well with all of LR wisdom there is no way to shut the heater off.
You "may" want to flush it using bottled water and white vinegar either way you will probably either have to remove the t-stat or replace it when done.
#26
Here's pix of the little holes that can get gunked up in the stat when flushing, they sample the hot coolant and make the thermsotat open. Restrict them, and stat opens later than it should. Pix of radiator dex-mud, and calcium build up (well water, tap water). Usually when things get to this point, flush is not enough. Also, mud in the fins of radiators, AC condensers, tranny coolers, oil coolers - all can cause heat issues. But getting the mud there is obviously great fun.
#28
To check fan clutch - with engine cold, not running - spin fan and release. Should go maybe 1/4 to 1/2 turn. Should feel like peanut butter inside the clutch. Then warm up truck to normal temp, and turn off. Spin by hand and release, again it should stop in less than 1 revolution. If it freewheels, the clutch has lost the fluid inside, and needs to be replaced, write up tech section for a $50ish Chevy cross over.
Don't try the shop trick of grabbing the fan to see if you can stop it while engine running - too many mechanics are called "Stubby". Also check your belt route (shown in tech area). Like Discover Discovery Maintenance Tips, Accessories, Parts & More at Roverparts.com
Don't try the shop trick of grabbing the fan to see if you can stop it while engine running - too many mechanics are called "Stubby". Also check your belt route (shown in tech area). Like Discover Discovery Maintenance Tips, Accessories, Parts & More at Roverparts.com
I got the prestone reverse flushing kit, I hope that cutting into the heater core tubing, which is a relatively short piece wont cause any problem.
Instruction for flush states to drain the radiator first, and than put the flush and fill it up with water. I don't know if it works better with water or why? Prestone instruction does states to turn the heater to high and let the engine run until operating temp.
#30
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