Question about 1999 Chrysler 300M

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What happens if the coolant bleed valve seat is broken inside the intake? 99 Chrysler 300M, new pump, therm, rad, hoses. Bleed valve screws all the way down, no contact with seat- had to plug hole to operate engine after coolant fill.

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REPLACE THE WHOLE BLEED VALVE WITH NEW BLEED SCREW.

Posted on Nov 12, 2009

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  • Chrysler Master
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I tkink you have a big problem you know as well as i do what has to be done.my advice is to go to your local motorcycle/engineering shop.the old shops could put a new seat in on an inprovised tool and fix the problem but they will tell you it is only tempory.adrian;;;

Posted on Nov 12, 2009

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6ya6ya
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My 2002 buick century overheats and has no heat


Possible trapped in system. Bleed system, should have two small screw bleeders, one in front of left valve cover on pipe behind water pump and the other on coolant pipe outlet as you follow upper rad. hose towards engine. Engine cool, remove rad cap, open both bleed screws and fill rad until coolant flows free out both bleed ports. close both bleed screws, rad cap off, start engine and let idle until upper hose is hot to touch , shut off, let it cool down for 20 minutes, top up rad and install cap. restart car ,drive and check.

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My truck continues t overheat AI had the radiator changed out, the thermostat the fan clutch and another thermostat. had pressure and blockage test ran on it it passed but the truck sill overheats. I was...


Hi,
The bleeding nipple would be near the water pump rad hose inlet and beneath the thermostat valve cover.
Bleeding is easy, just fill up the radiator and the reservoir w/ coolant run the engine for 5 min and open the bleeding nipples! or Just fill up the radiator before u start the engine, early morning, run the engine for 5 min. untill the thermostat valve opens, open the radiator cap( use a wet rag ), carefull not to open it instantly! Fill up the radiator while the engine runs, add coolant while u slightly reving up the engine.
Do these and open the heater to maximum, air might be inside the core too!
Hope that helps u out!

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96 Crysler lhs over heating. I have replaced the radiator, water pump, timing is correct, all new hoses except heater core hoses, thermostat, cap to resevoir replaced, intake manifold gasket replaced, and...


I HAD THIS PROBLEM AND REPLACED THE THERMOSTAT, BUT THE TRICK IS TO OPEN THE BLEED SCREW ON THE THERMOSTAT HOUSING, AND FILL THE ENGINE WITH COOLENT UNTIL IT RUNS OUT OF THE BLEED SCREW. (CLOSE THE SCREW THEN) NOW THE ENGINE WILL HAVE THE CORRECT AMOUNT OF COOLANT.

I DIDN`T KNOW THE PROCEDURE FOR THIS AND MINE KEPT OVER HEATING UNTIL I LEARNED THIS TRICK.

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1993 jeep grand cherokee havc code 06


Chrysler & Jeep Cooling System & HVAC Service: Every car make has its quirks, and Chrysler and Jeep vehicles are no exception. In researching this article, we found several examples of heater problems in these vehicles that seem to be fairly common.

On 2001 and 2002 Sebring Sedan, Sebring Convertible and Stratus Sedan, plus 1993 to 2002 Chrysler Concorde, LHS, New Yorker and 300M, Eagle Vision and Dodge Intrepid models with V6 engines, customers may complain their engine is overheating, or the heater is putting out little or no heat.

Chrysler Technical Service Bulletin 07-002-02 says the problem can be caused by a low coolant level in the cooling system. On these vehicles, air trapped inside the cooling system can displace coolant when the system is refilled. The radiator and coolant reservoir may appear to be full, but there still may be air inside the heater core and heater hoses. This will create a low coolant level that may lead to overheating and low heater output. The bulletin provides a special fill procedure to eliminate the trapped air so the cooling system can be completely filled.

The procedure goes as follows:
1. Obtain Chrysler special tool 8195 (Cooling System Filling Aid). The tool looks like a funnel and attaches onto the filler neck (just as a regular pressure cap does). But it also has a hose clip.
2. Attach the filling aid tool to the cooling system filler neck. Use the clip to pinch off the overflow hose attached to the fill neck. Attach a 4-6' long 1/4" ID clear hose to the bleed valve. Put the end of the hose into a clean container (to prevent coolant from spilling onto the accessory drive belts).
3. Open the cooling system air bleed valve before any coolant is added. If you do not do this, air can remain trapped inside the system and you won't get all the air out. On 1998 and later models with 2.7L engine, the valve is located on the water outlet connector at the front of the engine. On 3.2L and 3.5L engines, the valve is located on the lower intake manifold, left of center under the upper intake manifold. On 1993-'97 models with 3.3L and 3.5L engines, the valve is on the thermostat housing.
4. Pour a 50/50 mixture of coolant and water into the large side of the filling aid funnel. Use distilled, deionized or reverse-osmosis purified water, not ordinary tap water, which may contain salt or minerals that could contaminate the coolant.
5. Slowly fill the cooling system through the large side of the filling aid. Watch the hose connected to the bleed valve. When a steady stream of coolant comes out of the hose, close the bleed valve and continue filling to the top of the filling aid.
6. On 1993-'97 models, place a small, clean container below the end of the overflow hose. Then remove the clip from the overflow hose. Any excess coolant in the filling aid will now drain into the overflow section of the coolant bottle or into the container.
7. On 1993-'97 models, remove the reservoir and recycle the excess coolant.
8. Remove the filling aid from the fill neck. Make sure the filler neck and cap are clean, then replace the pressure cap on the coolant bottle.

Note: 1998 and later coolant bottles have two chambers. Coolant will normally only be in the inboard (smaller) of the two. The outboard chamber is only to recover coolant in the event of an overheat and should normally be empty - except for the coolant drained from the filling aid. This coolant will be drawn back into the pressurized side of the cooling system over time.

Hope helps.

Jan 12, 2011 | 1993 Jeep Grand Cherokee

1 Answer

How do i replace the water thmostat 99 6 cylider


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1 Answer

Overheating, but not consistant, May drive 2 miles or 25miles before overheating. Replaced theromstat, flushed, replaced radiator, replaced water pump, pulled headsand replaced head gaskets, cheched and...


1st make sure your cooling fans turn on. If they do, you probably have air in your cooling system. If you don't know where the bleed valve is or how to bleed the cooling system, check out this link. COOLANT BLEED VALVE

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2 Answers

99 Chrysler 300M. As there is no visible radiator cap, when I drain the cooling system does it refill through the reservoir?


The reservoir is the traditional top tank of your radiator.

The answer to your question is yes.

May 31, 2010 | 1999 Chrysler 300M

3 Answers

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you forgot to bleed the air out the water jaket so you have a big air lock in it, look for a water hose at the higest point in the engine bay it should have a screw or a bolt in it this it the bleed valve fill the rad with water undo this valve turn on the car heater to hot and run the engine up til;l there is no air coming out this bleed valve only water, then shut it off top up the rad and run the motor up till its hot check the rad water is still toped up,,,it should be ok after you bleed the air out,,,,,most cars need to be bled if the coolent is drained becouse the rad it lower than the top of the engine,,and this is a comon mistake so dont go beeting yourself up becouse you missed it out

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2 Answers

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It's on the left side (driver side). It's by the belts. You can't see the water pump from the top side.
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Jan 30, 2009 | 1999 Chrysler 300M

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