Question about 1998 GMC Jimmy

1 Answer

I have 95 gmc jimmy 4x4 it is still over heating after i changed theromstat

I just changed my theromstat and it still over heated then we put a flush kit in the jimmy ran it for like 3 days to total 7 hours of running it. And we flushed thru the block til it ran clear water. And i drove it down 3 blocks and it started over heating. What else can be the problem.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • GMC Master
  • 21,873 Answers

Damaged impeller on the water pump, or a leaking head gasket ?
Is the fan clutch working correctly ?

Posted on Aug 30, 2012

Ad

6 Suggested Answers

Anonymous

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Anonymous

  • 62 Answers

SOURCE: Can we flush the transmission fluid in her GMC 1998 Jimmy?

You dont have to flush the fluid because transmission fluid has detergents in it that will clean the transmission.You need to go ahead and by a transmission filter, its only abou 20 dollars and it will come with the transmission pan gasket. All you need is the filter and fluid and a catch pan and you can do it in your front yard if you want to. I hope that helps you out!

Posted on Jul 17, 2009

Anonymous

  • 1 Answer

SOURCE: 2000 GMC Heater Problem

I had problems with a similar truck,a 1998 GMC diesel after checking to make sure the control cables were operating the blend door and blowing the mess of the heater core,I replace the thermostats.Still no heat turns out there was a small amount of debris collecting in the fitting for the inlet hose at the thermostat housing after removing it and blowing out the lines the heat was fine.

Posted on Dec 05, 2008

Firebird 67

  • 6 Answers

SOURCE: CAR RUNNING HOT NO HEAT

Did you replace the THERMOSTAT?? also make sure you get all the air out of system

Posted on Jan 07, 2009

Anonymous

  • 5 Answers

SOURCE: Engine sputtering now it wont start

sounds like the same problem i was just having try changing out your fuel regulator its pretty pricey try to find the cheapest around $75.

Posted on Apr 07, 2009

Anonymous

  • 173 Answers

SOURCE: Heat not working on 98 gmc jimmy. Replaced

Flushing the heater core is fairly easy just remove the 2 hoses going to the heater core and use a different hose if you have to and use a garden hose to backflush the blockage out..this may take as much as 5-6 times also check for vacumn lines missing or disconnected or breaks pinched ect... some where in the vicinity of the passenger side under hood by the a/c lines ect. good luck hope this helps

Posted on Dec 07, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

1991 jimmy 4x4--canada


If the windshield is still leaking use a water hose and run it over the outside till you find the leak, and seal it with windshield adhesive. Moisture is bad for the fuse box. You may want to pull the fusebox out and inspect for damage behind it-melted or burnt wires, terminals, or connectors.
Sounds like you're on top of it. Just stop the leaking and clean up any damage and you should have it. Good luck.

Jan 10, 2012 | 1991 GMC S-15 Jimmy

1 Answer

Low heat s-10 pick-up. how do I flush heater core?


purchase a flush kit, and the flush cleaner from you local autopart store....there are instructions on it on where to put the hose adapter, I think you have to cut the input heater hose (one that goes from the core to the water pump) and splice in the provided tee from your purchased flush kit. run the cleaner through you cooling system and flush and fill....easy job...only take an hour....DO NOT forget to pull the drain on your radiator, people forget this all the time. Oh and enjoy watching all the gunk get flushed out...it is usually a sight to see. good luck

hope this helps

Jan 28, 2010 | Chevrolet S 10 Cars & Trucks

1 Answer

My car is running hot do u think i need to change the motor?


buy a radiator flush kit, some prestone flush additive, and even maybe a new thermostat, and a simple haynes manual for your auto. The manual will tell you where and how to change the thermostat, and how to drain the radiator, and how much radiator fluid you will need. The flush kit will instruct you where to put the flush fitting.
Remove the thermo, flush the motor, install new thermo and gasket. Add radiator fluid, done. This should solve your over heating probs. Don't let it over heat! You can cause major probs then.

You could always take it to a shop and pay the $200 to do it for you. My way would cost you less than $50.

please click yes if this helps. thanks

Jan 22, 2010 | 1999 Mercury Cougar

1 Answer

2003 kia sorento quits running wont start back


Did you try changing the Fuel Filter?  That did it for my Kia Sorento 2004.

Jan 14, 2009 | 2003 Kia Sorento

1 Answer

No heat on a 1994 4 cyl. Dodge Caravan


Pretty common on those. I used CLR and disconnected my heater hoses & with a small pump, I ran CLR only, through the heater core, and let it sit in there overnight, flushed it through again next day, back flush as well. re-connect hoses, run engine with heater on, and rad cap off until the rad fan comes on 2 or 3 times, then put cap back on, to bleed air out of system. Cleaned it out enough to get the heat flowing again. If you changed thermostat and didn't let it run with heat on, and rad cap off for a while as described above, then do that first, just to make sure you haven't just got an air lock in the system.

Dec 19, 2008 | 1994 Dodge Grand Caravan

Not finding what you are looking for?
1998 GMC Jimmy Logo

150 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

Marvin
Marvin

Level 3 Expert

85223 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

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

Answer questions

Manuals & User Guides

Loading...