i have a 2006 mercury grand marquis. i was sitting in the drive thru and the temp gauge was high. i shut off the car for a bit while waiting then when i got my food i turned off the A/C and drove home. while i was driving, the temp went back down to normal. i got to my driveway and parked, then turned the a/c on and the temp slowly went back up. idk if the AC changed anything. i also didn't see fluid in the coolant reservoir jiggling when i shook the car, though i'm not sure about that because it's an old and not easy to see through reservoir and i didn't want to open it just in case if it were higher pressure. i recall the fan being on and feeling the wind even underneath the car when i was looking in the drivewaywtf
>>29017381>i turned off the A/C and drove home. while i was driving, the temp went back down to normal. i got to my driveway and parked, then turned the a/c on and the temp slowly went back up. idk if the AC changed anythingWhen the car is overheating, you should turn on the heat instead of the a/c. Using the a/c makes your engine work harder to power the compressor, but turning on the heat just means it displaces some of the heat from the engine to the cabin, it can actually help cool down the engine faster. Basically if car is overheating you should turn on heat and open the windows to circulate the air. But right now you need to check the coolant when the car has been off for a while and add some if needed. It's likely that your car was overheating. However, you might be lucky and just have a bad thermostat. Those are cheap and super easy to replace in a panther platform, I don't even know if you need tools for it
>>29017399if it were the thermostat wouldn't it have gotten worse as i drove? it went back down to normal temp as i was driving home
>>29017381Sounds like your fan clutch is bad
Sounds like you have a ford problems
>>29017415would that still apply if the fan was clearly on? i thought that meant the fan just doesn't work at all
>>29017399This.Check coolant level.There should be a way to test the fan(s) with the engine off. I’ve had an overheating problem and there is a test mode for my car where bridging two pins in the OBD-I port runs the fans without the engine on, sure enough one of my fans was dead, easy fix.Also could be the thermostat. It’s like $15-30(?) and on some cars can be replaced in a minute with two bolts. You might want to replace that anyway.Failing that… is there white or bluish smoke coming out of your exhaust in warm weather? Could be head gasket(s). But check the easy stuff first.
Your radiator could be partially clogged. Try a flush. Looks like that has an electric fan so make sure no blades are missing and the shroud is in good shape.As the other anon said, if it happens again run the heater on max. The heater core is basically a mini radiator and the blower fan is a mini radiator fan. You can dissipate a lot of heat through the heater core.
>>29017421All the panthers use a fan clutch, first thing I’d do is replace the fan clutch, they don’t last forever. The fact your car is overheating then cools off when you drive means your cooling fan is not working, replace the fan clutch
>>29017478This seems to make sense, but if his his fan(s) is/are running then would it be the kind of fan clutch failure that causes overheating? Maybe.
>>29017478>>29017502it's 1 fan and yes it was running
>>29017503Hmm, I'd check the thermostatat.Have you waited for it to cool down and looked into the coolant reservoir yet? If it's low it's probably a leak or head gasket failure and you're burning it off.Could just be the thermostat or clogged radiator, which are very cheap and easy to fix. No Check Engine Lights popping up now and then?
>>29017506Also, not to discount his opinion - the fan clutch could be failing in such a way that the fan runs too slowly to cool properly even though it does spin.He may have access to knowledge about murrican cars or some common failure database that I don't.
>>29017506well this car has been too well maintained to be a failed head, plus these engines don't break heads easily. this was the first time i've seen the car overheat
>>29017503Yeah bro when your fan clutch fails the fan still turns, just with less force than it should
>>29017478>All the panthers use a fan clutchRock auto shows the 2006 civvie CV as using an electric fan, MOTORCRAFT RF272. There is a fan clutch listed for Severe Duty so that's probably the P71's. And I could swear I saw a CV using both the last time I looked, like, a thousand years ago.
>>29017537>>29017548coolant in the reservoir tank looks pretty damn low now. idk how it could be a leak and i definitely don't see smoke and shit from the exhaust. maybe it was a long term small leak? idk. i'm gonna put some purified water in there in the morning and take it to a shop and let them diagnose it all
it was the intake manifold :))
>>29018172It's a ford.
>>29017381>i was sitting in the drive thru and the temp gauge was high.>while i was driving, the temp went back down to normal.This indicates an Airflow problem as the *Primary* problem.Secondary problems, such as low coolant levels, marginal water pump, can aggravate the situation.Having said that, I would *first* check the PWM module, which controls the Duty Cycle and thus RPM of your single electric fan.You might want to just buy a new one, if it's cheap, ie less $50.That's a quick way to isolate the source of the problem.How to Test the PWM Fan System1.Start the car and let it idle. 2. Turn the A/C on to Max/High. Because the A/C pressure sensor overrides the temperature logic, the fan should ramp up to a noticeably loud, high speed
>>29017381>i have a 2006 mercury grand marquis.Why
>>29018172welcome to the panther club bro
>>29018627why not
