Question about Cars & Trucks

1 Answer

Have a 2001 ram 2500 v8. Can't get heat in cab above 95. Changed leaking radiator over summer. Since than have changed thermostat, flushed heater core and changed hoses. Engine temp won't go above175 unless I put cardboard in front.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 42,042 Answers

Did you replace the thermostat with a brand new unit . If so pull it out and check it in water with a thermometer . Suspend the unit in water to the mounting plate and bring the water to the boil . The flap should start opening at the lower reading set on the body and be fully opened at the higher reading . If the flap is partially open at cold then replace it as it is unserviceable to start with. Thermostats can be bought with at least 2 temperature temp ranges depending on the area of operation so get a higher opening reading one for your purposes.

Posted on Feb 10, 2014

3 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 1985 Answers

SOURCE: 98 sable -no heat. changed thermostat, new

Since your blower is working and it is a heat issue,thats where we'll start,First thing is have you checked the coolant level in the radiator when engine is cold,make sure it is filled to top,next verify you have coolant in reserve ,Start your van and get it up to normal operation temperature,If your heat gauge on the dash works correctly it should be 190 degrees,Now lift the hood and locate the two heater hoses going into the heater assembly at the fire wall,Both hoses should be hot to hold on to,if both are hot and no heat inside your problem will be the blend air door in heater assembly.
if neither hose is that hot you need to replace the thermostat in the engine to get it up to 195 degrees.
if one hose is hot and one is luke warm then the heater core is blocked and to blame. hope this helps you.

Posted on Jan 02, 2010

  • 30 Answers

SOURCE: Heater blows only luke warm air.

check control swicth

Posted on Feb 12, 2010

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

92 deville no heat at idle when driving I have some,

If you have no problems with any valve or perhaps the heater blower motor then heater core could be plugged, I have back flushed some successfully by changing the flow of coolant backward and catching back flow in a separate container. Could actually see large amounts of coolant stop leak.
1st thing to check, is coolant level full.
2nd , is the blower motor actually blowing,
Traveling down the road causes ram air to push through the heater as long as the controls are set for fresh air intake.
Remember If allumaseal will not plug a leak then more professional measures must be used. Many radiator stop leaks are so effective like bars leak the stuff that looks like rabbit feed pellets that when used professional help must be found because the radiator no longer has the circulation ability to cool the engine and if a vehicle is run any at all above max operating temperatures it will normally result in costly repairs. I have personally used fine ground black pepper and had good results but it must be very fine ground no matter what is used it must be small enough to travel through the small tubes of the radiator and or heater core. If larger particles are used coolant flow will probably be restricted enough to cause either no heat in the cabin or overheating of the engine which most certainly can cause serious damage the very first time.

Feb 15, 2015 | 1992 Cadillac DeVille

1 Answer

Need help.. I have a 2001 Dodge Ram 1/2 ton truck.. heater will not get hot.. changed the thermostat..had the radiator flushed.. checked heater coil (sp).. checked the air conditioner flapper door to see...

1 check,Feel the heater hoses,do they get hot ,both or one?They should be hot,if not flush the heater core directly with a hose,back and forth at each hose connection.
2nd check,clamp off the top rad hose and force the hot water through the heater and check heat output.If there is heat with top rad hose clamped change the thermostat,it's either leaking or defective,new or not.

Jun 01, 2017 | Cars & Trucks

1 Answer

I have a 1997 ford F150 4x4 king cab that has no heat. I have flushed the radiator, changed the heater core and flushed the heater hose. Still no heat.

Have any of you stopped to think that the Thermostadt may B bad especially after flushing the radiator replacing the heator cor Duh!!!!
Rplace the Thermostadt it will more then likley do the trick.
When the thermostadt goes out you will experiamce hot radiators no heat . ect.... first thing 95% of the people that experiance this replace the heator core first . no that you have elemanated the least obvious do the most

Oct 24, 2011 | 1997 Ford F150 Regular Cab

2 Answers

I have a 1996 Dodge Ram 1500 with very little heat. The lines get hot going to the heater core, but I do not get enough heat out to keep the cab warm. I contacted heatertreater, but my hot cold control...

I have the same truck, I have flushed the radiator both ways, flushed the heater core both ways flushed the engine four times, I have owned this truck for eight years and still cannot get it to heat up the cab. It will keep the windshield defrosted but that is all. If you find any tricks to fix this let me know PLEASE

Nov 15, 2010 | 2000 Dodge Ram 1500 Truck

1 Answer

97 dodge ram 2500 v8 5.9 no heat flushed the system heat core is not plugged

heater cores have small bypases in them try using a blow gun with air unhook both line make sure there is water in it .try both careful not to slash your self or get it in your eyes .also you can get the truck to operating temperature check heater hoses to see if they're the same temp.
if not its clogged up

Oct 27, 2010 | 1997 Dodge Ram 2500 Club Cab

1 Answer

I have a 2001 sonoma which is running high on temperature. I just changed thermostat and it still running too hot. The heater does not blow heat and when I took out the thermostat it seemes like it needed...

The radiator might be clogged. Take it and have the system flushed out,and back flushed, that will tell if there is a clog somewhere. If the radiator is too clogged, it will need to be replaced.

Mar 28, 2010 | 2001 GMC Sonoma Extended Cab

4 Answers

Dodge Ram 1500 - I have no heat. Will replacing the thermostat slove this? If so how do I replace the thermostat?

Hello, No! I'm assuming that the temp gauge is working in truck & you are not over heating. On the passenger side firewall check both hoses going to/from heater core. If both are not warm then it is probably a heating core plug. You will have to replace the heater core.

Jan 06, 2010 | 1996 Dodge Ram 1500 Club Cab

1 Answer

2002 dodge 1500 Changed radiator, thermostat, and hoses. No heat

Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.

Nov 19, 2009 | 2004 Dodge Ram 1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

31 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts


Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Randy Ohler

Level 3 Expert

14585 Answers

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

Answer questions

Manuals & User Guides