Question about 1995 Dodge Intrepid

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Lack of heat inside the cabin, 1995 dodge intrepid

Water pump was replaced, made sure there is not any air in the coolant system, replaced thermostat and radiator cap, now I cannot get heat inside the cabin. Calibrated the heater controls and they checked okay.

What could be my problem?

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U mite have to bleed it at the outlet hose from the heater core on the firewall
as systems have so much coolant routing through so many hoses that just bleeding at the bleeder won't do it
I can explain how if needed

Posted on Mar 16, 2012

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Possible bad heater core

Posted on Feb 04, 2009

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2 Answers

Can a year-old water pump that doesn't leak or make noise just stop pumping ?


The impeller could break loose from the shaft. You would have to remove the pump to find out for sure.
Could be a blockage in one of the passages too.

Apr 13, 2015 | Cars & Trucks

Tip

How to inspect,diagnose and repair minor over heating problem for under 2 hours.


Copyright © by Mustgo on Dec 2009

How to inspect,diagnosis and repair minor over heating problem in under 2 hours.

Thanks for viewing my Fixya tip post.

My goal is to solve the most common over-heat,running hot on stop and go traffic and intermittent cabin heating problem (no heat)

The target audience is DIY'er who has a car that's just starting to over-heating and has about 2 hours to ran though my check list.

===

The first part is basic universal safety.

Follow by steps the required to fully diagnose the root cause of the problem.

Example:air pocket in coolant system VS worn water pump VS blown head gasket.

THE INSPECTION

Follow by THE FIX.

============

If you are just getting the initial sign of over-heating then you will be able to replace the thermostat2_bing.gif,gasket,black RTV,coolant mix and 50/50 mix coolant temperature sensor and get back on the road for under $80.

For those who has leaks on the radiator,water pump the repair cost will be much higher.

Losing coolant and having WHITE smoke coming out of the tailpipe after 15 minutes of warming up is a sign of blown head gasket.
This is an internal head gasket damage and the engine head(s) must be remove to do a head gasket job.

=======

My tip is for folk what are encounter over-heating on the first week.
Hopefully under 3 times of over-heating.

Repeat over heat will warp the aluminum head(s),blow out radiator hose(s) and radiator.

=======

SAFETY FIRST


MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!

MAKE SURE safety goggles are on at all time.

RAN THIS TEST IN A WELL VENTILATED AREA ONLY!

You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!

===

When the car is completely cool,check the electric fan(s) for smooth rotation.

Make sure there is not wobble movement or touching surrounding plastic.

Clean/check/change the thermo/temp sensor,contacts and wires.

====
CRC Electrical Contact Cleaner is the ideal chemical to speed up the cleaning job.
====

Clean the metal contacts on fan relay,inside the relay socket and fan socket.

Follow the sensor all the way to the firewall to make use it's in perfect condition.

Inspect other wiring for cut,and exposed wiring.

Use 3M high temp. electrical tape to protect damaged portion of the wire.

===


THE INSPECTION


THIS IS A 30+ minutes JOB.


The longer you can monitor the coolant system will give you a better idea of the condition of the coolant system.


Excavate air pocket in coolant system / check for head gasket leak

Air pocket can be trap inside the coolant system.

The water pump's turbine / fins is totally ineffective when there is not coolant surrounding the water pump.

=====
This test will kill two birds with one stone.
=====

Most radiator shop charge $75 just to excavate / air purge the coolant system.

=====

Top of the coolant reserve tank to the COLD / COOL / LOW level.

Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Keep the coolant reserve tank cap in a safe location.

The goal is to lift the vehicle higher to monitor the air pockets and let it escape.


The radiator should be 8-20" high from the stationary position to let the air pocket to escape.


Let the car ran and start monitor the temperature.

Monitor for air pockets escaping from coolant reserve tank.


Small amount of bubbles is OK at 1-5 minute mark


After the thermostat open up at 195-210 F,Electric fan should turn on automatically


If your vehicle has a secondary electrical fan then turn on the A/C and all lights,radio,and electrical items to ensure the fan is operation.


5-12 minute mark or after high idle you should see less bubbles.


If you DO NOT see any in rush of bubbles when thermostat opening between the 5-12 minutes mark then the maybe partially stuck or rusted badly inside the thermostat hosing.


Give the thermostat housing few gentle taps.
(follow the TOP large radiator hose to the top portion of the engine)


If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

A coolant pressure test is also a must to pressurize the coolant system to locate addition leaks.

Examples:radiator,head gasket,freeze plugs,or water pump


Let engine cold down,lower the car onto level server and top off coolant reserve tank to the TOP / FULL /HOT level.


Start monitor for coolant lost everyday.

===

THE FIX

If the radiator cap is over 5 years old or rusted badly then change it.
The spring can be weaken and will not hold pressure.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Thermostat,gasket and black RTV is not expensive and it should be change every 4 years or 48,000 miles.


A coolant flush is require every 2 years or 24,000 miles.
Check your service log for the last coolant flush.


Low heat condition is cause by combination of stuck thermostat,low coolant level,dirty coolant system and worn turbine / fins on the water pump.

If the water pump has over 85,000 miles on it then water pump can SLOWLY leak into the time belt cover.

The turbine/fins on the water pump can erode badly after 96,000 miles.

Monitor coolant level and check for water pump,radiator,coolant hose leaks.

Place a larger cardboard under the radiator,water pump or timing belt cover. Monitor the coolant drip and inspect the problem area accordingly

Visual Inspect your coolant reserve tank for bubbles when the temp. is near 195F+. (after a long drive) If you see hydrocarbon leaks then you should stop driving the vehicle until a shop do a pressure test and dye tests.

===

If my post is helpful to you then please rate it!

on Dec 05, 2009 | Honda Civic Cars & Trucks

2 Answers

My heat dont work all the time and when it dont it over heatz


sounds like a water pump or heater matrix problem change the coolant and have the system flushed through and fill making sure you bleed the air from system if it was the matrix blocked the flushing should have cleared it so check the water pump if still having probs

Apr 26, 2014 | 2004 Dodge Intrepid

1 Answer

Little heat coming out of vents.


IF YOU CAN'T FEEL THE AIR FLOW OUT BUT YOU HEAR THE BLOWER MOTOR WORKING, BEHIND THE GLOVE BOX IS A CABIN FILTER.REPLACE FILTER
IF YOU HAVE GOOD AIR FLOW BUT NO HEAT:
1;VACUUM LEAKING TO HEATER CONTROL
2;WATER PUMP GOING BAD / NOT CIRCULATING COOLANT,HIGH RPM/MORE COOLANT TO THE HEATER CORE
3;OPEN THERMOSTAT/ENGINE TEMPERATURE TO LOW
1;CHANGE THE DIRECTION FROM VENTS TO FLOUR TO WINDSHIELD. IF NOTHING HAPPEN IS THE VACUUM
2;RUN THE ENGINE INSIDE ON WARM PLACE ON IDLE.NOTE THE GAUGE IF PAS 1/2 TO 3/4. IF PAS 3/4 MARK REPLACE WATER PUMP
3;IF GAUGE STAY BELOW 1/2 REPLACE THERMOSTAT
GOOD LUCK

Mar 27, 2014 | 2005 Dodge Neon

3 Answers

Last year my 2005 Chevy Impala water pump went out I change the water pump thermostat and that was it change thermostat free other times after that do the bad thermostats the overheating never really...


If you have changed the water pump AND the radiator AND the thermostat and still have the problem then the hoses should be checked to be sure they are not collapsing, also make sure that the coolant is 50/50 water and coolant and the thermostat is installed right.

Jan 26, 2014 | 2005 Chevrolet Impala

2 Answers

Over heating on my dodge intrepid 1997 after short time of driving


CHECK ENGINE COOLANT LEVEL.MAKE SURE COOLANT OVER FLOW JUG HAS COOLANT IN FULL COLD MARK.IF COOLANT OVER FLOW JUG IS EMPTY RADIATOR GOT TO BE LOW ON COOLANT POUR COOLANT IN THE OVER FLOW UNTIL COOLANT LEVEL STAY AT THE COLD FULL MARK.SEE IF RADIATOR DONT HAVE A RADIATOR CAP YOU HAVE TO POUR COOLANT IN THE OVER FLOW JUG COOLANT WILL FLOW DOWN IN RADIATOR UNTIL COOLANT LEVEL STOP AT FULL COLD MARK.IF COOLANT LEVEL OKAY.YOUR THERMOSTAT NEED CHANGING ALSO RADIATOR PRESSURE CAP.HAVE RADIATOR FLUSHED OUT.HAVE ENGINE BLOCK FLUSHED OUT.CHECK ENGINE OIL IF OIL LOOK LIKE MILK SHAKE ON OIL DIP STICK YOU HAVE LEAKING HEAD GASKET THAT WILL CAUSE ENGINE OVER HEAT WHILE CAR IN MOTION.CHECK WATER PUMP MAKE SURE ITS WEEP HOLE NOT LEAKING ANTIFREEZE IF SO WATER PUMP NEED REPLACING.

Jun 20, 2011 | 1997 Dodge Intrepid

1 Answer

1995 Dodge Intrepid no heat in cabin. Made sure there is not any air in the coolant system, replaced thermostat and radiator cap. The lower hose that comes out of bottom of radiator is cold. All other...


Radiator has a blockage, it can be removed and taken to a shop to be cleaned out, or a new one can be found on line for a little less than $100.

Feb 08, 2011 | 1995 Dodge Intrepid

1 Answer

CAR CONTINUES TOO RUN HOT AFTER REPLACING WATER PUMP, THERMOSTAT, AND RADIATOR, BEEN TOLD IT MAY HAVE AIR BLOCKAGE, DON'T THINK IT HAS A CRACKED HEAD OR BLOCK, DOES NOT LEAK WATER, NO WATER IN OIL, OR...


Try this.

With the engine cool remove the radiator cap. Now start the engine and let it warm up to the point where the thermostat opens. You can usually tell when this happens by checking the temperature of the upper radiator hose, and the coolant level in the radiator. It will start getting a lot hotter quickly when it does and the coolant level should drop.

While the engine is warming up, watch the coolant in the radiator for air bubbles. Fill up the radiator as needed while continuing to watch the coolant level. Having the radiator cap off while doing this allows the trapped air to escape more easily. If you do have a large air blockage then when the thermostat opens you should see a large drop in the coolant level. You want to keep the Radiator full. Once the air bubbles seem to have stopped you can replace the radiator cap.

You may have to repeat the process a couple times if there is a large amount of air trapped in multiple pockets.

A cracked head or block you can usually diagnose as there will be a lot of small bubbles coming out constantly while the engine is warming up, and even more bubbles if you rev the engine higher as the compressed air/fuel will be forced into the cooling system.

Feb 03, 2011 | Cadillac DeVille Cars & Trucks

2 Answers

My heater blows cold air when car is stopped. i have installed a new water pump and the radiator is full of water.


you still have air trapped in the cooling system. Get front of car as high up as you can on a hill. Cold engine - loosen radiator cap, fill with 50/50 antifreeze mix. Start engine and run until upper radiator hose is hot (thermostat open). Engine should burp air and maybe spill some coolant, that's ok. Once burped, tighten cap, shut off engine and let it cool down while keeping the reservoir full. It will **** coolant out of reservoir as it cools. Keep it full.

If still cold air, take to a shop that has evac/fill equipment; they will **** air out and repalce with coolant. About $80.

gerry

Jan 26, 2011 | 1989 Mercury Colony Park

1 Answer

Audi A4 1.9tdi Quattro 1997- Blower fan was only blowing cold air. Changed intercooler radiator as it was leaking, but fan still blowing cold air. engine temp went over half and then came back down. Only...


REPLACE THERMOSTAT.MAKE SURE COOLANT SUPPLY PIPE OR COOLANT RETURN PIPE NOT STOPPED UP AND YOU HAVE ENOUGH COOLANT IN THE SYSTEM.REPLACE THERMOSTAT.CRANK ENGINE UP AND LET IDLE UNTIL WARM UP KEEP EYES ON TEMPERATURE GAUGE. WHEN ENGINE THERMOSTAT OPEN COOLANT HOSE SHOULD BE HOT.IF NOT TURN OFF ENGINE.USE LARGE RAG WAIT A WHILE BEFORE REMOVING RADIATOR CAP CHECK TO SEE IF COOLANT LEVEL DROPPING IF SO ADD MORE COOLANT.CRANK ENGINE UP UNTIL THERMOSTAT OPENS UP.HOSE WILL GET HOT.IF STILL COLD CHECK COOLANT LEVEL.ONCE YOU AIR OUT COOLANT SYSTEM RADIATOR HOSES WILL GET HOT SO YOU WILL GET HEAT.IF COOLANT LOW YOU WONT GET NO HEAT.

Jan 09, 2011 | Audi A4 Cars & Trucks

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