Question about 2006 Chevrolet Silverado 2500HD 2WD

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My 2005 2500 HD Duramax is not getting any heat inside cab. Engine is not running hot and coolant level is fine. Turned the heater controls up and down fast today and ot some heat for a while. Have you any suggestions

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  • Chevrolet Master
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I have answered this question in your first post.a

Posted on Feb 09, 2012

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Posted on Jan 02, 2017

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fyrebyrd1
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SOURCE: wheel bearings on 2005 HD 2500

I just came across your posting, If you're still having this issue, it may be due to the offset of your wheels. Too much offset can cause excessive load on the outboard bearings. If you have wheels that move the centerline of the wheel too far outboard of the bearing, then you will generally be putting too much stress on the bearing/hub assembly. as you know your vehicle has a unitized bearing assembly. If the bearing is being overloaded on the outer edge by too much offset it will fail over time. hope this helps

Posted on Oct 21, 2008

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SOURCE: 2500 hd duramax crew cab 4 WD pulls right. Both

First try rotating the tires to the rear. Does it go away? If you apply the brakes does it pull to the left? Could be a draging caliper or the slides may be hanging up.

Posted on Aug 03, 2009

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SOURCE: 2007 chevy silverado 2500 hd duramax shut down

mo me it sounds like low fuel volume i would check my lift pump

Posted on Sep 30, 2009

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SOURCE: Drain Engine Coolant in 2005 Chevy Silverado 2500 HD

there is a petcock at the bottom of the rad drain ti from there and use a antifreeze tester to check protection temp

Posted on Nov 18, 2009

rickyrt441
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SOURCE: where do you find the Crankshaft sensor on a

What size engine?

Posted on Feb 28, 2011

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I had a hole in a heater hose that caused a vapor lock how do you get the vapor lock out


From cold, run engine without the coolant cap on, have heater control switch on hot, let the system heat up, be careful it may pump out some coolant till the thermostat opens, when the thermostat opens the water level will drop, check if heat is getting into the car, top up to max level and replace the coolant cap. Check coolant level later, when the engine has cooled down, top up required. DON'T REMOVE CAP WHEN ENGINE IS HOT

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SOMEHOW I BELIEVE YOUR TWO INTAKE & RETURN HEATER HOSES THAT FEED THE HEATER CORE HAVE BEEN REVERSED. EITHER THAT OR a plugged heater core

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My 2005 2500 HD Duramax is not getting any heat inside cab. Engine is not running hot and coolant level is fine. Turned the heater controls up and down fast today and ot some heat for a while.


The temperature of the air coming out of the ducts is controlled by a door that moves between the heater core and the AC core, it is called the "blend" door for obvious reasons as it blends the hot and cold air streams to give the desired air temperature at the dash vents. The door is controlled by a small gear drive DC motor called the blend door actuator, what happens in most case is the actuator is damaged by a blend door that is warped from heat being hard to move or not moving at all which is the case with your truck. The blend door and its actuator should be replaced as one repair, the dash must be removed from the truck to access the air ducting that contains the blend door, you absolutely need a service manual to complete this job, it takes about 10 hours.

Feb 09, 2012 | 2006 Chevrolet Silverado 2500HD 2WD

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I have a 1999 sierra 1500 4 w drive truck and my heat core blows only gold air. can anybody tell me what is the problem?


Before assuming the heater core is blown check the following.

1. Check coolant level while engine is cold.
2. Leave the radiator cap off and let the engine run. See if you can see the coolant circulate
when the engine is brought up to temperature.
3. Check the temperature gauge inside and note if the engine temp is correct.
4 Does the engine overheat?
5. Feel the heater hoses and check if they get hot.
6. Can you smell antifreeze inside the cab?

Start here and let me know.

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1997 Camry 4-cyl fan works but heat very weak - coolant level ok


Probability 1) The thermostat is probably stuck open, coolant is not getting hot enough from the engine to provide heat.

Starting from cold, allow the engine to run and warm up. While doing this, feel the upper radiator hose - you should be able to feel the coolant heating up to the point the hose is uncomfortably hot. If it gets that hot, then go to next step.

Probability 2) The heater core flow is restricted, not allowing full flow of coolant into passenger compartment.

There are 2 smaller heater hoses that run to the firewall. Are either of these hoses getting hot? Both sides hot indicate full coolant flow. Both sides cool indicate heater control valve not opening fully.

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I have a 1988 chevy 1500 4x4 i have the heat turned on but no heat comes out just cold air whats wrong?


First thing to do is check the antifreeze level in the radiator. An empty radiator won't always show a hot temperature gauge or make heat in the cab. If it's full, then the problem is probably your heater core. Judging by the year of your truck, thats where my money's at.

Mar 08, 2010 | 1988 Chevrolet C1500

1 Answer

Tempeture guage not working and heater is blowing out very little hot air on my ford galaxy


you need to get the thermostat changed. The thermostat controls how much coolant runs around the engine and sends signals to your temp gauge to indicate how hot the engine is.
if the thermostat is faulty it wont sent signals to the temp gauge and wont open up to allow coolant to run around the system. Your heating is run by coolant, behind the dash there is the heater matrix hot coolant runs into the matrix which gets blown inside the cab.
Fitting a new thermostat will fix all the heating and gauge problems. if your technical minded you can buy a thermostat from an autofactor (or ford, but they are expensive from ford). a garage will charge about £30-£100 ish for a new one.

hope this helps :-)

Feb 10, 2010 | 2001 Ford Excursion

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Heater wont work


Could be the diverter valve. It's the one located near the firewall2_bing.gif in the engine bay. The valve is in-line on one of the two coolant hoses that run through the firewall2_bing.gif. Have a helper rotate the temperature knob back and forth, with the ignition turned on, and you watch to see if the valve is being adjusted. I'm guessing it isn't. Sometimes the cable pops off its perch, other times someting is broken on one end of it or the other. Plastic parts are often used in this assembly. Best of luck

Jan 31, 2010 | 1995 Toyota Tercel

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Not much heat from the heater


Hi my name is Allen!

The first thing to check is the coolant level, if the coolant is full and the heater core hose is extremely hot to touch, then you may have a door problem. If you like we can work together on this problem. First check the coolant level. Then run the engine until operating temperature, grab each of the heater core hoses and let me know what you find.

For further asistance you may reach me at FixYa!

Dec 27, 2008 | 2000 Dodge Dakota Quad Cab

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I have a 05 Nissan Sentra and it keeps running hot and the heat isn't blowing hot. But when Im under the hood the hoses runing from the radiator and thermastat; the top hose gets really hot while the...


Hey iisha, although obvious, 1st thing to check is the coolant level. If it's low, the engine will run hot and the low level prevents coolant from circulating to the heater core inside the car, so the result is little or no heat, but engine running hot situation. The top rad. hose takes hot coolant from the engine, it flows down thru the radiator where it is cooled (w/ help from the fan) and the coolant returns to the engine at a reduced temp. to keep the temp under control, and it's returned thru the bottom hose (the result is the bottom hose should be cooler thant the top. There's more involved than that, so 1st check your coolant level, if it's ok let me know I'll help further. Hopefully the fix is that simple, and it is a rather common problem.

Dec 08, 2008 | Nissan Sentra Cars & Trucks

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