1996 GMC Sierra Logo

Related Topics:

Posted on Dec 30, 2010

How to replace heater control valve on 1996 gmc truck

5 Related Answers

Anonymous

  • 98 Answers
  • Posted on Sep 07, 2008

SOURCE: 1996 buick roadmaster keeps overheating:

A shotgun approach to repairs can really rack up the bills.

If your symptoms are loss of water and you have replaced the thermostat, you more than likely have an issue with steam. And that steam more than often comes from a bad head gasket. Most head gasket gasket failures seem to be confined to the water side initially, but let it go on bigger damage will occur.
You can buy a litmus test strip to dunk in the coolant. It will indicate if there are exhaust residuals in the water and thus a gasket failure.

However it may just be something simple, given that you have just about replaced everything:

have you given the radiator a good hosing inside and out?
is the radiator fan running when it should be?

Ad

Anonymous

  • 1450 Answers
  • Posted on Sep 11, 2008

SOURCE: 1996 GMC Sonoma heater core

the dash has to come out

Anonymous

  • 1 Answer
  • Posted on Mar 14, 2009

SOURCE: heater control valve

Where is the thermostat in a dodge dakota 1992 located? Flushed it yesterday still just have heat blowinf ti side vents rather cool windsheild defrost. Maybe there is another problem?

Anonymous

  • 144 Answers
  • Posted on Sep 04, 2009

SOURCE: the rear a/c on my 1996 gmc suburban is blowing

the problem is in the rear expansion valve. this valve is located at the rear evaporator core. i am assuming the freon level has been checked and is ok. this is a common problem with these vehicles. hope this helps!!

Brian Anderson

  • 399 Answers
  • Posted on Oct 20, 2009

SOURCE: i have a 91 toyota truck and the heater dont work

1. Check you antifreeze to make sure it is up to the correct level. Low coolant doesn't make it's way to the heater core thus no heat.

2. IF that don't work, replace your thermostat and one of those things 9 times out of 10 will fix your problem and they're cheap too.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

No heat 1996 gmc jimmy!No heater control valve on either heater hose!Is there a valve in dash?

common issue with this vehicle is plugged heater core...check temp of hoses in/out of core
1helpful
1answer

1996 ford explorer with no heat, replaced blem and thermostat still no heat

check your heater control cable and check your coolant control valve for vacuum operations. control valve located under hood @ coolant hoses leading to the heater core. cable operates a blend door inside truck under dash/behind glove box.. this should help
0helpful
1answer

1996 ford explorer no heat heater control valve replaced and thermostat air is blowing cold it switches to defrost and floor with no problem

there is a valve on the heater hose under the hood. its either vacume or cable operated. check to see if valve is moving. this controls the water flow into the heater core. if this is stuck then thats your problem.also if its not cable operated make sure its getting vac to the actuator
2helpful
1answer

Heater not blowing warm air. Thermostat has been

Check the water control valve behind the engine close to the firewall. This valve opens and closes to allow hot coolant to enter the heater core. It is usually connected to the heater controls with a cable. When you adjust the heater control for heat, a cable activated lever on the valve should move and allow coolant to move through the valve. The cable from the heater control can come loose from the lever, or the valve itself can become corroded and hard to move.
0helpful
1answer

Where is the HVAC box located on a 2000 GMC Sierra 4X4. I beleive the mixing door is not working correctly, I'm only getting warm air not hot. All ready changed thermostat and checked hoses.

Check in the one heater hose will be a control valve. Check the operation of the valve(this is the heater control valve). If the lever on it appears to be moving. Take the valve out and manually check that the valve is opening and closing the whole way. If not replace the valve and recheck. If it is the heater core may be clogged not allowing the hot coolant to flow thru so you can get heat.
0helpful
1answer

The rear a/c on my 1996 gmc suburban is blowing hot air, the front blows cold. where is the heater control valve for the rear heater core? i have taken the panels off of the condenser and the ducts for the...

the problem is in the rear expansion valve. this valve is located at the rear evaporator core. i am assuming the freon level has been checked and is ok. this is a common problem with these vehicles. hope this helps!!
0helpful
1answer

Merc c class heater problems centre blowing cold and sides hot

Bad vacuum pod, try using a mini vacuum and the on the valve block behind the glove box take suction on each one till you find the bad one.
Not finding what you are looking for?

382 views

Ask a Question

Usually answered in minutes!

Top GMC Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

john h

Level 3 Expert

29494 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...