Question about Pontiac Montana

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We replaced a hose that was connected from the engine to antifreeze. We are now having problems with the van overheating. We have bleed the hose but it is staying in the middle of the temp gage. Can the van be driven when the temp is setting in the middle

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Yes the engine requires a reasonable temperature for optimum performance and a temperature of about 70-80 is OK.
The temperature guage at the middle is alright or even a little further, there is fault in your car.
Only after the engine starts up and acheives the temp. does the valve opens and allows the water to pump .
Only if the car is steaming and loosing water you need to be concerned,, that is above the 3/4 mark.

Posted on Aug 30, 2010

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My 2002 Oldsmobile Silhouette keeps overheating. We replaced the thermostat and flushed the system by adding new antifreeze. The air blows cold from the heater when the car starts to overheat. Once


there can be air pocket somewhere you need to bleed system properly. rais the front let is idle bleed it thru bleeding screw. be sure that bubbles are over.

air pockets prevent coolant travel inside system. so it may not reach to radiator, or cabin heater or both.

Nov 19, 2011 | 2002 Oldsmobile Silhouette

1 Answer

2005 kia sedona 76,000 overheats the engine


My 2005 KIA Sedona started overheating in Winter 2009/2010 and was loosing antifreeze. No leaks from the heater hoses or radiator hose. No pressure in the radiator either.

I had found a site where folks were discussing the same things and someone brought up the rear heater. Apparently KIA has run steel hoses running under the chasis to the rear of the van and these rot.

I looked under the rear at the wheel well and located the lines and they were wet with antifreeze. I traced the lines to the firewall and found where the lines were connected to the coolant system and bypassed the rear heater lines.

I then filled up the radiator and overflow tank with antifreeze and started the van. I rocked the van to get air to move out of the lines and kept adding antifreeze until it was full. then used the overflow tank to top it off.

Hope this helps.

Feb 12, 2011 | 2005 Kia Sedona

1 Answer

Heater is not blowing hot air and just as I noticed that the car was overheating almost in the red. I put a gallon of antifreeze in and the car is not overheating but still not blowing hot air from heater


yea some cars are hard to bleed, you have an air pocket in your heater core, but that is the less of your problem, a water pump or a leaking hose or radiator, need to repair leak and bleed system properly, if not you will need an engine overhaul due to an overheat.

Feb 03, 2011 | 2001 Ford Taurus

1 Answer

I HAVE REPLACED NEW THERMASTAT AND NEW WATER PUMP, BUT STILL NO HEAT.WHAT ELSE CAN BE MY PROBLEM ? THIS IS A1995 FORD WINDSTAR VAN.


Maybe you didn't bleed all of the air out of your coolant systtem.
I had a very similar problem, last month, my heat would not go above 50 degrees F.

I had air in my heater core.

I put wheel blocks behind the back tires and engaged the emergancy brake.
I jacked the front of my van up so both tires were off the ground (about 3")
I removed the radiator cap, started the engine, and turned the heat on high.
I added antifreeze, until it was full.
I let the engine continue to run, as I watched the antifreeze level go back down, then I added more antifreeze.
After doing this 2 times, I squeezed and held the upper radiator hose. I did not release it.
I started pouring more antifreeze in and when it started to over-flow, I still kept pouring as slowly released the hose.
With the raditator level full, I replaced the cap and put some antifreeze in the coolant reservoir.
Lowered the front back to the ground and removed the tire blocks.
I stuck a guage in the inside vent and I now get a 125 degree reading.

Note...after I got the van jacked up, it only took me 15 minutes to get the air out of the system (mainly, because I squeezed and held the hose).

Nov 16, 2010 | 1995 Ford Windstar

1 Answer

Overheating 2003 dodge durango. What could be the problem??


When engine running, ensure no engine combustion gas bubbles in coolant resevoir (if so, the head gasket is blown).

Check cooling fans are operating ok (when required when car warms up), if not check
1) fuse,
2) relay operation,
3) heat sensor switch.

Replace thermostat.
When re-filling cooling system, bleed off any airlock as necessary.

Check for collapsing (soft) coolant hose on suction side of waterpump when engine revs above idle.

Sep 01, 2009 | 2003 Dodge Durango

4 Answers

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there is a coolant cap on the overflow bottle check it for seal
i'd just replace it
also if you put the new thermostat in backward the overheating would be significant

Apr 21, 2009 | 2000 Lincoln LS

2 Answers

2001 pontiac montana overheating no warm air when heat is on


Might be a weak or failing water pump... Does it leak antifreeze or do you have to add antifreeze very often? When the engine gets to operating temperature squeeze the top radiator hose and see if you can feel pressure from the water pump forcing water through it.

Feb 21, 2009 | 2001 Pontiac Montana

2 Answers

Overheating problem


sounds like your heater core has gone bad!! Do you smell antifreeze when you run the heater??

Dec 10, 2008 | 1999 Oldsmobile Silhouette

1 Answer

1990 Subaru Liberty Overheats


Hi,

I had the same problem with my 1993 Liberty LX. Remove the thermostat (located inside bottom radiator hose engine connection - take the connection off and thermostat is inside). Reassemble (minus thermostat), reconnect bottom hose. Slowly (very, very slowly) refill the radiator and remove the bleed plug ( located beside the top hose connection to the radiator - a black square plug with a phillips head cross in the middle). When the radiator is full and clear water (no air bubbles) is coming out of the bleed point, replace the bleed plug and then the radiator cap.

Run the engine for five minutes (approx) or until normal engine temperature is reached. Allow the engine to cool down and recheck the water level - fill if necessary ensuring that the bleed plug is open and clear water is coming out of that point. Replace Bleed plug and then radiator cap. Run engine for five minutes (approx) and then test dive. If the engine overheats keep filling the radiator until there are no air bubbles coming from out of the bleed point.

This fixed my overheating problem. Good luck and safe motoring.

Aug 06, 2008 | 1993 Subaru Legacy

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