Question about 2002 Jeep Grand Cherokee

2 Answers

My cousin Changed the thermostat on his 02 grand cherokee and failed to open the bleader screws to bleed out the air the hose swelled up larger than normal and was rock hard. A line that come from the engine air filter to the rear of the motor broke of at the "T" connector. my suggestion was to disconnect the battery for 30 minutes replace the broken parts run the vehicle with the bleeder screwes open until fluid came out and I don't mean airy fluid I specifically said a "solid" fluid like a stream then close them and check the coolant level. Disconnection the battery should bring it out of "limp in" mode but could he have ruined and sensors or anything else that might need replaceing?

Posted by on

  • jesus Rojo May 11, 2010

    HI is the engine running rough now or what is your concern.

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 496 Answers

Hi,
I'm scratching my head on this one... bleed air?
Did this happen right after he put in the thermostat?
My guess... possibly the thermostat was put in backwards. I suspect the engine wanted to overheat too...?
I am surprised however, that the radiator cap didn't allow the pressure to release through the overflow. You might want to replace that swelled hose with a fresh one.
Check on this...

Posted on Sep 25, 2009

Ad

I think your the one to work on your cousins veh. I agree so for with what your said except the swelling hose part. Go back and pull the thermostat. Wrong one or went in wrong.

Posted on Sep 25, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

04 Grand Prix changed all but radiator bleed thermo but still full air


Run vehicle with cap off. If this motor has 2 bleed screws, open the one where the bypass hose connects. ( 7mm) bolt and leave open till coolant comes out while continuing to fill. It may take a bit but should bleed properly. When both upper and lower rad hoses are hot top off and cap system

May 18, 2015 | Cars & Trucks

1 Answer

2003 Jeep Cherokee Laredo started overheating after replacing thermostat.


This is s common fault after replacing thermostat, there is a system bleed screw located on radiator which will need bleeding? If you warm engine up"only warm not hot" then locate bleed screw and slacken off, not unscrew all the way? You will hear a hissing noise of the air in you system. Very similar to central heating radiator in a house! Once you have water coming through then tighten up bleed screw/bolt and give engine a bit of a run. Hope this helps

Oct 15, 2013 | 2003 Jeep Grand Cherokee

1 Answer

HI i have bled the brakes but the pedal still travels half way to the floor


You did bleed the brakes? But if you just pushed back the pistons, that is not bleeding the brakes.

I think that either you have air in the system still, or the brake fluid has moisture in it and is boiling, or a brake hose is failing and is swelling out like a balloon, most likely the first.

Cars with ABS can be difficult for the DIY to bleed effectively, you may need a pressure bleeder attached.

May 24, 2012 | 1996 Jeep Grand Cherokee

1 Answer

How to burp the cooling systen for 1999 Jeep Grand Cherokee?


in later models of WJ grand cherokee there is no bleeding screw on radiator or its hoses( it is supposed to be done by autobleeding with a special type of "high tech benz style radiator cap". but on previous versions like yours there should be a bleeding screw just left of radiator cap. you need to bleed the air when you raise the front and while letting it idle. (this is for 4.7 v8 version) if yours is 4.0 i6 drop me a line.

Nov 19, 2011 | 1999 Jeep Grand Cherokee

1 Answer

How do i bleed my master cylinder to my 1998 ford ranger


start at right rear wheel then left rear wheel then right front then left front that is the sequince. When you crack the bleader open on any wheel you will need a small ruber hose. put one end of the hose on the bleader and the other in jug with brake fluid in it. have help to pump the brake pedal so you can watch the hose or jug to see if any air come out.if no air .then make sure you have good pedal.

Feb 03, 2011 | 1998 Ford Ranger SuperCab

4 Answers

Changed thermostat and upper hose. found pin hole in hose, but this should still not cause no interior heat should it?


I had a camaro do the same thing and it was the heater core plugged with brown gook! I took the hoses off the heater core on both ends and put the hose in one of them until water came through the heater core. It took a little time but in became unclogged in a few. Brown water for a bit. Then reconnect and see if you get warm air for your heater. Hope this works.

Jan 22, 2011 | 1994 Jeep Grand Cherokee

1 Answer

I have a 4,7 v8 i changed the therostat an now the jeep over heating an have no heat inside the jeep what do i do


you have air in the system. park on an incline, open radiator cap, start car, let it warm up until the thermostat opens, fill radiator until it stops going down. Also crack open any bleed ports to let out any trapped air (there may not be any).

Dec 07, 2010 | 2003 Jeep Grand Cherokee

1 Answer

1999 alero changed thermstat and the car will intermitantly overheat there seems to be no pattern.


BLEED AIR OUT COOLANT SYSTEM.WAIT UNTIL ENGINE COOL DOWN.REMOVE COOLANT OVER FLOW PRESSURE CAP.IF YOU HAVE 3.1 OR 3.4 ENGINE OPEN AIR BLEED SCREW ON WATER PUMP BYPASS HOSE.OPEN BLEED SCREW.WATCH COOLANT IN OVER FLOW AS YOU OPEN BLEED SCREW COOLANT WILL DROP IN OVER FLOW JUG. AS IT DROPS CLOSE BLEED SCREW ADD MORE COOLANT IN OVER FLOW JUG DO THIS UNTIL COOLANT LEVEL STAY AT COLD FULL MARK.WHEN DONE TIGHTEN BLEED SCREW DONT OVER TIGHTEN IT OR IT WILL STRIP OUT BREAK.CRANK CAR UP UNTIL THERMOSTAT OPEN THAT WHEN TOP RADIATOR HOSE GET HOT.WATCH COOLANT GAUGE,IF ENGINE TEMPERATURE RISES TURN OFF ENGINE WAIT UNTIL COOL.REMOVE RADIATOR PRESSURE CAP USING A RAG TO KEEP FROM GETTING HANDS SCALED.ADD MORE COOLANT IF NEEDED WHEN ENGINE COOLANT STOP DROPPING IN OVER FLOW JUG AND ENGINE DONT OVER HEAT AIR IS OUT OF COOLANT SYSTEM.

Sep 13, 2010 | 1999 Oldsmobile Alero

1 Answer

Coolant is low. bleeding system?


Hi.You have to open that bleeding screw until all the air is out of the cooling system

Nov 17, 2009 | 2002 Jeep Grand Cherokee

2 Answers

NO HEAT


Check your serpentine belt as well as your water pump. Could also be the blower motor or your in-dash heater control unit.

Jan 06, 2009 | 2003 Chevrolet S-10

Not finding what you are looking for?
2002 Jeep Grand Cherokee Logo

103 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides

Loading...