I Have a 1990 Jeep Cherokee.heaters Not Working.do I Need to Purge the Heater Core, and How Do I Do

you can try and run water thru the heater hoses only and to get air out of system youy remove radiator cap crank motor and let it run adding coolant to it when it drops and when it rises put cap on for a second or so and then remove and keep watching it when it stops pushing it out should be good to go and really not much you can do to heater core once it plugs but always worth a shot also check flow by feeling the hoses when car is hot both hoses should feel hot if not you know its pluged and you can also check thermostat by watching the flow with cap off if it drops every few minutes its working

1. my 2003 galant"s heater core broke does it need to be replaced immediately or whenever?

You can loop your hoses to bypass the heater core

2. How do you replace a heater core on a 1990 Oldsmobile Regal?

its a pain in the ***

3. How do you tell if your heater core is leaking?

Well, it might be leaking onto the carpet, the windows may have a lot of moisture, and/or a combination of evaporated anti-freeze and water vapor will rise from your vets. I have a 72 Thunderbird with the same problem. (not only is the heater core leaking, the head gasket is leaking coolant into my oil. ).

4. PLEASE HELP with my 95 Ford Escort LX 1.9L heater core related?

If it is anything like my S15 Jimmy 4X4 find a new car! It was behind the dash like all of them but it took 4 days to change it as you have to remove the entire dash to get to it. Most heater cores I have changed (About 7) have taken from 20 minutes to 4 hours, this was the worst I have ever had to do, and 4 weeks later a head gasket blew! Oh well

5. What else could it be? If my heater core is fine, what else could it be?

you need to stop driving and take it in stop being cheap

6. how to remove heater core for 1998 oldsmobile bravada?

Drain the engine coolant. Release the heater inlet and outlet hose clamps at the heater core. Remove the heater inlet and outlet hoses from the heater core. Release the heater inlet hose clamp at the intake manifold fitting. Remove the heater inlet hose from the intake manifold fitting. Release the heater outlet hose clamp at the water pump. Remove the heater outlet hose from the water pump. Remove the heater outlet hose from the retaining clip at the engine water outlet. Open the heater inlet and outlet hose retaining clip above the right side valve cover. Use a flat bladed tool to open the clip from the bottom. Remove the heater inlet and outlet hoses from the vehicle. Installation Procedure Apply lubricant (GM P/N 9985662) to each end of the heater inlet and outlet hoses. Important: When installing new heater inlet and outlet hoses, place the clamps on the hoses before installing the hoses to the vehicle. Install the heater inlet and outlet hoses to the vehicle. Install the heater outlet hose to the water pump. Install the heater outlet hose clamp at the water pump. Install the heater inlet hose to the intake manifold fitting. Install the heater inlet hose clamp at the intake manifold fitting. Install the heater inlet and outlet hoses to the heater core. Install the heater inlet and outlet hose clamps at the heater core. Install the heater outlet hose to the retaining clip at the engine water outlet. Place the heater inlet and outlet hoses in the retaining clip above the right side valve cover. Close the retaining clip. Ensure that the clip locks. Fill the engine cooling system. Inspect the system for leaks. 2012 ALLDATA LLC. All rights reserved. Terms of Use The pictures did NOT trans scribe. This is from ALLDATA the best source for car repair issues. ANY good library will have this subscription. If you are SMART, you will NOT use the dexcool coolant that makes trouble over time, but use either MERCEDES YELLOW or PENTOSIN German coolant. It will be the LAST time you will have to worry about cooling system breakdowns based on coolant type. GOOD LUCK!!

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Refer to my answer in "how do I bleed a radiator" You need to bleed the cooling system as a whole. Meaning, car at operating temp with thermostat open (both top and bottom radiator hoses will be hot indicating coolant blow through thermostat). Open bleed using radiator key until you have fluid flow and air is gone. Check for additional bleeder nipple on thermostat housing and bleed (using same method as radiator) if present. Hope I have helped. Cheers1. Is it possible to heat a car with a space heater?Get a hotter rated thermostat in the motor and give up the crazy ideas!2. What is wrong with my water heater?well chances are the bathroom faucet is probably the last faucet in the run,maybe that's why you need to let it drain for a while,and as far as the leak is concerned it may be the seat not the washer,check the seat in the faucet and see if it has chips or breaks in it,if so then you can replace it just like the washer,first you will need a seat tool to remove it,very inexpensive,take it out and take it to the hardware store and let them match it up unless you already know what type it is,reinstall it along with a new washer(it probably already has cuts in it) and before you turn the water back on make sure to take the aerator off the faucets in the house,unless you want to replace all of them3. Do I need a heater core?Best thing I would do replace the thermostat again get the rad flushed and refilled. Start from there. No change then start looking at other cooling system parts4. How do you convert a car to run on cooking oil?Firstly, it needs to have a diesel engine pre 1997 with mechanical injection (rotary pump and mechanical injectors) and no electronic engine management (ECU).Secondly, if the vehicle does not already have a fuel pre-heater, then you will need to fit one.Thirdly, if you do not plan to create biodiesel (TME) from the cooking oil but use it raw, you will need to replace any seals in the fuel lines with Vitron food-grade seals rather than rubber ones. If you tick all those boxes, you are good to go. Run it on 95% oil and 5% conventional diesel in summer and a 60% oil and 40% diesel mix in winter.I have driven several vehicles fuelled on cooking oil. A series of 1990-1992 Peugeot 309 GRD vehicles and a couple of Vauxhall Astra 1.7TD vehicles.How do you convert a car to run on cooking oil?5. Fix the heater on my Ford Explorer?If you do not have any coolant leaking inside or outside the truck then it's a very simple problem to fix..and should not cost you alot of money if you can do it yourself ..just change your thermostat..the reason it is working sometimes and not on other times is because it's sticking open. .if it sticks open then the coolant can not warm up..so it is allways running cold..the way a thermostat works is that once your car gets to a certain temperature ."usually on the thermostat" then it opens up and starts to cool the motor and in turn warming up the liquid. .get yourself a good all season thermostat usually for a ford truck would be 190-205 degrees..if you want to change it yourself should be simple just follow the big hose from your rad to the engine and you will see a metal housing held on with 2 nuts..remove these two nuts and remove the old thermostat and replace it with a new one . ."in the same position" you may need a new gasket as well..or you can use RTV silicone..i would get a new gasket for a few dollars6. Name of water heater part?Pilot light7. can the water pressure valve from heater cause an explosion(pics) (10 points) ?The valve with red handle is probably the inlet water valve. Open the valve completely. What controls the amount of water entering the heater is the amount you are using at the lavatory to brush your teeth. You have a faucet on the lavatory that you adjust for the amount of water you need. The valve with the red handle should be full open so that it gives you all it can. Now, on you heater, you also have a pressure relief valve that is screwed directly into the side of the hot water tank. And there might be some piping that would carry that discharge away from the tank. That line does not have any valves, restrictions or anything that would interrupt the emergency discharge of steam from the tank. I do not see the pressure relief valve in the photo
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