Question about 2002 Chevrolet Silverado 1500

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2001 Z71 over heats driving real slow or ideling for a few mins. Have 50/50 aint/water for coolant, new therm. any ideals what to check next?

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Fan clutch, clogged radiator, leaking radiator cap, bad intake manifold gasket

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What type of antifreeze for a 2001

A 50/50 mix is a ideal. Antifreeze has two benefits when properly mixed. It protects the coolant from freezing down to -40 degrees Fahrenheit and it helps remove heat from the engine. Diluted coolant in the short term is not harmful. Long term it could lead to the accelerated corrosion of vital cooling system components. Anti freeze also offers lubrication to the water pump. Less concentration will equal less lubrication. If your son is adding water than there is a leak. Adding water until the leak is fixed is fine as long as the temps don't get below freezing and the problem is addressed as soon as possible.

Apr 09, 2013 | 2001 Hyundai Elantra

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You would have air pockets with a new thermostat and none if you leave it out.
Are you sure you are burping the cooling system with the new thermostat installed ?
Its also possible you have a leaking head gasket or other problem that is being amplified by having the thermostat installed. Something may be heating up with and not without.

Mar 04, 2013 | Cars & Trucks

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2001 Taurus No Heat

heat control valvue could be stuck closed not allowing water to pass through the heater core

Nov 25, 2012 | 2001 Ford Taurus

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Replace heater core in 2001 nissan sentra

1) Drain engine coolant. 2) Remove all cowling under the centre of the dash for access to the matrix.3) Remove two water pipes from matrix.4) Disconnect heater matrix valve cable.5) Remove matrix being careful not to spill water over the ECU.
Reverse instructions for refit.
6) With heater turned to maximum heat, top up cooling system with 50/50 anti freeze/water ratio.
Run vehicle and check that the radiator is free of all air and that the radiator fan cuts in when hot.
Run the car and recheck coolant level over the next few days of running in case of leaks.
Check under dash in case of leaks.

Nov 14, 2012 | 2001 Nissan Sentra

1 Answer

How many gal of antifreeze should i put in the coolant system? I put 2 gal in as there was little left in the system. I went to drive the truck and within 15 min the truck was over heating. The antifreeze...

Was it knocking in the radiator when it over heated if so you most likely got an air lock in the system by pouring the new antifreeze in to fast. You need to add it real slow and once you think the radiator is full start the truck and let it warm up and leave the radiator cap off until the thermostat opens and then add more antifreeze because when the stat opens the level will go lower. Once you are sure the antifreeze is circulating an full then you can go drive the truck. Some people use a 50 percent mix of antifreeze to water but I always use 100 percent antifreeze it runs cooler.

Jun 05, 2017 | 1989 Ford F 250

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2006 dodge grand caravan heater only blows warm air when i am accelerating

With the engine cold check the coolant level. Add as necessary. If the coolant gets low enough the first thing to stop working is the heat. Accelerating will push coolant into the void and provide heat until you slow down and then the coolant drains back into the motor.

If you have lost enough coolant to loose heat there is a leak. Some common areas are the rear heater lines under the passenger side of the van, the water pump, and the radiator.

Dec 14, 2010 | Dodge Grand Caravan Cars & Trucks

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No heat in my dakota. flushed heater core and replaced therm with a reg one.

check for poor flow to heater core-change heater hoses -check for lime build up at intake connector or worn out water pump -if you only put water through core try using CLRlime cleaner in core-get two 6in pieces or heater hose hook them to core and pour it in and leave for 15 mins then wash out with water hose

Oct 04, 2009 | 1987 Dodge Dakota

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2003 honda civic over heating

Solve? Although I clicked the link to solve the problem, I have no answers but am tempted to go after honda.

Same problems still occuring on my 2003 honda civic (103,000)!

I have:

-Changed thermostat's twice (180 degree; Yes, it is correctly positoned with the jiggle tab to the top and the correct side facing the engine)
-Installed new water pump
-Checked coolant level
-Changed the timing belt
-Checked for head gasket symptoms (white exhaust, corrosion in cylinders/plugs, loss of fluid, checked cylinder compression (all check out)
-Had the entire system presure tested 3 times with no visible leaks
-Run the car for 45 minutes with no visible drips/leaks
-proped the front of the car up to get air out of the system

This weekend I had spare time on my hands so I replaced the thermostat (checked the other, which according to bioling water at 180 worked as designed) I flushed the entire system, took out the radiator and had it blown out, flushed the entire system, installed new upper and lower hoses, checked the fan switch, I will be replacing the coolant with new, installing a new radiator (since they cost only 100 online and I have the hole front end off anyway, I'll be reinstalling the fans and switches, and trying it out again.

I drive about 100-450 miles between overheating, but it is very sporadic.

Still have the same heater issues- cold air when stopped and not accelerating at times. I am tempted to check the heater core next- but there is no loss of fluid from that ethier?

When I get the system back together, I'll try running the car for a few weeks without the heat on to see if that corrects the problem.

All of the steps to repairing the cooling system seem easy and cost 1/10 of getting them checked at a shop if you have the time!

I'll update again next week!

Jun 12, 2008 | 2003 Honda Civic

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