Question about 1997 Jeep Cherokee

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Jeep blowing cold air.. already blew out heater core

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6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

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brainyass
  • 242 Answers

SOURCE: heater only blows warm air.

The hoses from your heater core should be very hot to the touch. Check the hoses going to the core from the water pump. It should be very hot. The return hose should also be very hot. Now check the hoses going to the core. If they are not the same temp, then your heater control valve is not working correctly or the vacuum is not working. At any rate, locate the vacuum line going to the heater valve. Remove the silver bar on the valve from the plastic plunger arm. You will have heat all the time now if it was only a vacuum problem. You can fix it later when it's warmer out. BTW a 200* thermostat will make your heater even hotter.

Posted on Nov 21, 2008

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  • 512 Answers

SOURCE: heating system blows only cold air

it maybe a blend door problem. if both hoses at the firewall for the heater are close in temperature its not likely a heater core. the actuator for the blend door is located on the bottom of the heater/ac box towards the middle of the bottom. it will be a tight fit but you can remove it without removing any part of the dash. take it off and disconnect the power. start the vehicle and manually move the door and see if the temp changes

Posted on Jan 11, 2009

  • 1 Answer

SOURCE: Heater blows cold air

If the "Heater In Hose" gets hot, and the "Heater Out Hose" does not get hot, than either the Control Valve is sticking closed, or your heater core is plugged up with ****!

Have you used "Barrs Leak" or a simular product for a radiator leak? That will sometimes clog the heater core.

I have a 1993 Grand Cherokee, which "Normally" throws very hot air out of the heater, but lately sometimes it only throws warm air, till I make my first stop, than it gets hot.....all because the heat control valve is hanging up.

Low water in the radiator will also cause a heater to not work.....if the water level is too low to circulate to the heater.

XRM

Posted on Feb 18, 2009

  • 1 Answer

SOURCE: heater blows cold air

the electric motor that open the heat door looses electrical connection there by the door stays on cold / it is located under the a/c heater assembly / which requires removing the whole dash and heater assy// also bleed all air out of coolant system
there are three doors / 1/ a/c heat 2/ mode /defors 3/ recurculation dodgeboy6069@yahoo.com

Posted on Sep 11, 2009

  • 115 Answers

SOURCE: my 2002 jeep liberty heater blows cold air when it

Coolant level could be low. Might need a new thermostat. If the coolant level is low you likely have other issues. Check back here if that's the case. I hope this helps..

Posted on Mar 15, 2010

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3 Answers

No heat in 1996 grand cherokee


you could be low on antifreeze/water fluid or you have a blockage on your heater core.. I have a problem with my heater core being plugged.. Try disconnect the hoses to the heater core and see if water will flow through it or you can use air to blow through it.. Good luck

Dec 19, 2013 | 1996 Jeep Grand Cherokee

1 Answer

Heat not working on 99 Jeep Wrangler. Blows cold air in vent and defrost.


You may want to check the two water houses that feed the heater core. they both have to be hot. (they are usually located next to the thermostat housing.) If they are cold first check the coolant level. Fill up if needed, then you may have to check of there is an obstruction by the housing or the heater core is clogged up. I would first disconnect the hoses and see inside the thermostat housing with a lamp. Also blow some Air inside the heater core to see if flushing is needed. Well if those hoses are both hot then that must be a problem inside the cabin with the vents selection. Either an electric switch or cable. But there are already a few things to check first.

Dec 05, 2013 | 1999 Jeep Wrangler

3 Answers

My heat in my jeep just stopped working


need to make sure you have enough coolant and if it does then it could be your thermostate or clogged heater core

Feb 17, 2013 | 2007 Jeep Wrangler Unlimited Rubicon 2...

1 Answer

How do i replace/install a heater core for a 1999 limited edition jeep cherokee 4.0 liter 6cyclinder


I would make sure the core is the problem. You may have a heater control valve that cuts off flow to the core by vac. or a blend door that cuts off air flow thru the core.
You will need a shop manual to replace the core. The dash and console have to come out, along with discharging the ac.

Dec 18, 2012 | 1999 Jeep Grand Cherokee

1 Answer

Why wont the heater blow out hot air in my 1995 pontiac bonneville. it will only blow cool air


If the heater hoses are getting hot, the problem may be a faulty blend door under the dash. The blend doors direct air thru the heater core and the vents.

Oct 12, 2012 | 1995 Pontiac Bonneville

2 Answers

1997 jeep wrangler heater blowing cold airWhat's your problem?


Heater blowing cold air,indicates towards low or no coolant or the coolant flow is getting obstructed or the heater core is clogged or hot to cold moving flap/ door is stuck in cold mode. There are many possibilities, that needs to be checked. Click the link below for step by step details:--- http://technoanswers.blogspot.com/2011/10/heater-blows-only-cold-air.html ---------- This should help.Thanks.Helpmech.

Oct 20, 2011 | 1997 Jeep Wrangler

2 Answers

I already changed the thermostat on my 2002 Jeep Cherokee and the heat actually seemed like it was working but now it is not blowing any heat at all. What could be the problem?


Air in the system or a clogged heater core. If it's air in the system, it needs to be burped. Click on my screenname, go down to Tips and Tricks, and follow the tip there on how to do so.

If the heater core is clogged, you'll need to blow it free. Follow the two heater core hoses from the firewall out to the engine. Disconnect them both, put one in a bucket, and use the blowgun attachment for an air compressor to blow into the other one. Then swap - put the one you blew into, in the bucket, and blow into the one that was in the bucket the first time. Reconnect the heater core hoses, and burp the system (again, follow the Tip instructions for that). Usually that will take care of it.

Dec 10, 2009 | 2002 Jeep Grand Cherokee

1 Answer

I have a 2001 Jeep Grand Cherokee. Originally blew only cold air no matter what the heat settings were at. Then blower stopped working. Discovered wires were corroded and replaced them as well installed...


either bad recirc doors or a possible bad heater core. Open the hood and when the car is warmed up to mid point on the temp gauge look on the passenger's side firewall under the hood. You will see 2 black rubber hoses running through the firewall. Feel each hose and if one of the 2 are cold then you have a bad heater core. Otherwise most likely the recirc door.

Nov 16, 2009 | 1994 Jeep Grand Cherokee

1 Answer

The heat in my 1992 Jeep Wangler is not working.


The only reason it won't blow hot air is because the water is not getting to the heater core. Check to see if you have a heater control valve in one of the two lines to the heater core. If so check to be sure that is is opening and closing. If it won't open then you get no water flow in to the heater core.

Feb 04, 2009 | 1998 Ford F150 Regular Cab

2 Answers

98 jeep wrangler no heat


Try this disconnect the heater hoses from the heater core use a hose to backflush the core. Then reconnect and try again.

Oct 18, 2008 | 1998 Jeep Wrangler

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