I've been having some weird problems in my LS lately. My friend said there might be an air bubble in the coolant line or something. What happens is my car will say Temperature Issue and the temperature gauge will spike up really high. I pull over, turn it off and it drops back down to normal temperature but the fan kicks in high. Then I turn it off and turn it on again, and it's perfectly fine. Anyone have any ideas?
Weird Temp Overheating Problem
- Thread starter KD00LS
- Start date
StinkinLincoln00
New LVC Member
I have a 2000 V8 and I was having the same problems. I ended up changing the thermostat and bleeding the air bubbles out of the system. She runs at regular operating temperatures now.
Quik LS
Dedicated LVC Member
+1 - that is the fix 99% of the time.
NickLS
Dedicated LVC Member
Same here. For me it was the thermostat
For my '06 it was the thermostat. Twice last fall I got on the Interstate (I live right off the exit, 1 redlight) when it was mid 30's. about 10 miles down, rollin about 75, the temp spiked and the message center gave me the warning. Stealership swapped the thermostat, been rock steady at 9 o'clock ever since, where it used to fluctuate 9 o'clock to 10 o'clock.
Opies_LS
Active LVC Member
Look for a cracked overflow bottle too, that finally fixed the last of my problems like that. I think they refer to it as a degas bottle. (I am not mechanically inclined). I had the thermostat replaced first but the problem persisted. Also, my fill cap was cracked and had to be replaced.
Quik LS
Dedicated LVC Member
easy
- draing coolant -> http://www.lincolnvscadillac.com/tech/Lincoln-LS/CoolingSystemDraining/
- remove the three bolts holding the t-stat housing together
- swap t-stat
- put the housing and three bolts back together
- fill and bleed coolant
pic of where the t-stat is.... -> http://www.lincolnvscadillac.com/showpost.php?p=215528&postcount=7
- draing coolant -> http://www.lincolnvscadillac.com/tech/Lincoln-LS/CoolingSystemDraining/
- remove the three bolts holding the t-stat housing together
- swap t-stat
- put the housing and three bolts back together
- fill and bleed coolant
pic of where the t-stat is.... -> http://www.lincolnvscadillac.com/showpost.php?p=215528&postcount=7
I don't want to hijack the thread but I am having a similar problem, that has now started happening a week after having the thermostat replaced.
This is on a 2001 V8 sport.
Last fall, I had overheating issues where after starting and driving the car, the temp gauge would go right past 9 o'clock and spike a temp, usually going into reduced power mode. I would pull over, shut it off and wait, and after a few minutes I could actually hear something "pop" followed by a little hum and sometimes the rush of liquid through plumbing. This overheating would only occur when the outside temp was over 50°F or so. On cold days, it was always fine, and as winter came it wasn't a problem any more.
A few weeks ago when it finally started to warm up around here, the problem resurfaced. Same thing as before except it took longer and longer each time to hear that popping noise (which I assume was the thermostat popping open and coolant rushing through the system). Also, there would be coolant leaked behind the driver side front wheel, but only when it overheated. I took it to a local shop and they replaced the thermostat. It was fine for a week, but then it was cold out around here again, so who knows?
Anyway today on my way home it overheated again. But this time it didn't do it right away. I went a few miles, more than I could normally go if the thermostat "stuck" and then it sort of gradually overheated. I pulled over, shut it off, and waited. Heard the pop and whoosh again. Restarted the car and the temp was normal the rest of the way home.
Any ideas? After searching the other threads I'm guessing the leaking is from a cracked degas bottle. But could something else be going on? Why does it still act like a stuck thermostat with the popping? Or could that be an air bubble trapped in the system? I'm guessing if coolant can leak out of that bottle, then air can leak in?
Any help would be appreciated.
-Randall
This is on a 2001 V8 sport.
Last fall, I had overheating issues where after starting and driving the car, the temp gauge would go right past 9 o'clock and spike a temp, usually going into reduced power mode. I would pull over, shut it off and wait, and after a few minutes I could actually hear something "pop" followed by a little hum and sometimes the rush of liquid through plumbing. This overheating would only occur when the outside temp was over 50°F or so. On cold days, it was always fine, and as winter came it wasn't a problem any more.
A few weeks ago when it finally started to warm up around here, the problem resurfaced. Same thing as before except it took longer and longer each time to hear that popping noise (which I assume was the thermostat popping open and coolant rushing through the system). Also, there would be coolant leaked behind the driver side front wheel, but only when it overheated. I took it to a local shop and they replaced the thermostat. It was fine for a week, but then it was cold out around here again, so who knows?
Anyway today on my way home it overheated again. But this time it didn't do it right away. I went a few miles, more than I could normally go if the thermostat "stuck" and then it sort of gradually overheated. I pulled over, shut it off, and waited. Heard the pop and whoosh again. Restarted the car and the temp was normal the rest of the way home.
Any ideas? After searching the other threads I'm guessing the leaking is from a cracked degas bottle. But could something else be going on? Why does it still act like a stuck thermostat with the popping? Or could that be an air bubble trapped in the system? I'm guessing if coolant can leak out of that bottle, then air can leak in?
Any help would be appreciated.
-Randall
NYC LS8
Dedicated LVC Member
I'd vote on air in the system. Check that bottle for cracks, refill and bleed the system and see what happens.
97stscaddy
Dedicated LVC Member
Try to finger out where that POP sound is coming from. Probably the thermostat. Tell you what id do is just take the T-stat out completely and see if it still does it. If that fixes it go buy a GOOD quality thermostat, then try it again.
An update:
The problem still exists except now instead of (or really, in addition to) spiking a temp right from the get go, I now get kind of random temp spikes while driving, that usually settle back down in a few seconds. I topped off and bled the system. This morning the car was fine but temperatures were in the 30's and I haven't had problems when it's that cold out. I checked at lunch and now I have some leaking going on by the front driver side wheel even though there was no overheating episode.
I'm going to try a new cap on the reservoir / degass bottle first.
If that doesn't work, NateRW21 was nice enough to supply me with the degas bottle replacement instructions and I'll have to go that route. I don't have the most complete set of tools so I've been gathering info here to make sure I'll have what I need. Here's what I've come up with for tools and supplies:
- Regular wrenches / sockets to remove engine compartment brace. (I have those) Also I have a jack & stands to remove the wheel.
- I haven't checked but I'm assuming the wheelwell panels remove without any special tools
- Something to drain the coolant into
- LONG needle nose pliers to disconnect / reattach the bottom hose on the degas bottle, accessed from the wheelwell.
- Standard hose clamps to replace the proprietary PITA ones
- A new fuel filter to replace "while I'm down there"
- Coolant and clean water
- Cold beer
Anything else?
The problem still exists except now instead of (or really, in addition to) spiking a temp right from the get go, I now get kind of random temp spikes while driving, that usually settle back down in a few seconds. I topped off and bled the system. This morning the car was fine but temperatures were in the 30's and I haven't had problems when it's that cold out. I checked at lunch and now I have some leaking going on by the front driver side wheel even though there was no overheating episode.
I'm going to try a new cap on the reservoir / degass bottle first.
If that doesn't work, NateRW21 was nice enough to supply me with the degas bottle replacement instructions and I'll have to go that route. I don't have the most complete set of tools so I've been gathering info here to make sure I'll have what I need. Here's what I've come up with for tools and supplies:
- Regular wrenches / sockets to remove engine compartment brace. (I have those) Also I have a jack & stands to remove the wheel.
- I haven't checked but I'm assuming the wheelwell panels remove without any special tools
- Something to drain the coolant into
- LONG needle nose pliers to disconnect / reattach the bottom hose on the degas bottle, accessed from the wheelwell.
- Standard hose clamps to replace the proprietary PITA ones
- A new fuel filter to replace "while I'm down there"
- Coolant and clean water
- Cold beer
Anything else?