Question about 1990 Dodge Dakota

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1990 dodge dakota 2.5 over heats temp gauge erratic

New radiator, flushed system, over heats at idle, rev motor with the clutch in temp gauge goes down. when hot radiator cap is cool but still a lot of pressure when you loosen the cap coolent is hot.

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  • Dodge Master
  • 2,899 Answers

If your engine is overheating, Try this procedure:

  • Dirt and debris can get lodged in the radiator air flow paths. This can block the radiator and cause your engine to overheat and damage the engine.

  • The thermostat can be stuck close. If you feel the upper hose very hot and the lower hose cooler than normal, it may be a stuck thermostat.

  • Make sure the radiator and the overflow bottle are filled to the proper levels.

  • Bleed air from the coolant system:This is best done by running the engine with the radiator cap off until you see when the air bubbles stop coming up.

  • Check the radiator fans: The easiest way is to turn on the cars air conditioner and turn up the A/C fans. Both radiator fans should come on when the A/C starts

  • Make a pressure test by using a pressure testing tool (available at most auto parts stores). Use the pressure shown on your radiator cap. Most cars are 16 PSI or less, so don't exceed that pressure. Replace the radiator cap if it doesn't hold the pressure.

Posted on May 09, 2015

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  • Dodge Master
  • 5,370 Answers

For car running hot and overheating issues, I suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems: ----

temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Temperature gauge keeps fluctuating up and down close to red? http://technoanswers.blogspot.com/2012/01/temperature-gauge-keeps-fluctuating-up.html

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Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

---------------------------

Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------

Temperature gauge does not move and no heat when heater is ON? http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

---------

This details will help.Thanks.

Posted on Feb 17, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

emissionwiz
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SOURCE: cant get fan loose

turn to the left to loosen, they can really be a bear to take off is you don't have the special tool.

Posted on Jun 12, 2009

  • 4102 Answers

SOURCE: 92' dodge dakota has coolent in the oil

hi, if you have coolant going into the oil then their can be only one cause for this and that would be that the head gasket has failed, this is a big job to do and would involve removing the top half of the engine and replacing the gasket and the head bolts if needed it may also need the head pressure testing and maybe skimming without getting the head preasure tested you may find after changing the gasket you may still have the same problem so please get it pressure tested.
It is a big job and the head bolts need to be un-done in a certain order and the same when putting it back on also it will need tightening up to certain degrees and certain torque settings for every bolt failing to do this correctly would result in the cylinder head being warped.
If you have no experiance in doing head gaskets then leave it to a pro as its such a big job and you can get it horribly wrong as you need to make sure you get the timing spot on once you have put cylinder head back on getting this wrong would mean destroying your engine as the valves would smash the pistons meaning you then need to replace the engine.

Please leave to a garage if you have never done this before as it is a very big job, also its not a cheap job to pay a garage to do the parts ie the head gasket and head bolts are not that expensive but its the labour that costs the most.

If you are thinking of doing this yourself then make sure you get a repair manual (Haynes workshop manual are the best you can get) this will then guide you through the whole process step by step with pictures and it will give you the correct torque settings and order of doing things plus you need this to make sure you get the timing marks correct.

Let me know how you get on or if you need further assistance ok

Posted on Nov 11, 2009

  • 289 Answers

SOURCE: when empty how much coolent do i ad for my 3.9

There should be a 'hot' and 'cold' marking on the plastic resevoir. With engine running hot the fluid level should be down to the hot line. If not, fill reservoir, to hot line.

Posted on Dec 01, 2009

rfoulds85
  • 128 Answers

SOURCE: 04 ram 1500 4.7, new

Your sending unit is definately bad running at 180 - 210 is perfectly fine and it is not overheating at all.Replace it and your problems will be solved. But make sure you are using your lazer temp gauge at the same point as your temp sending unit.If you are then it is your sending unit if not you may have air in the system at the point of the sending unit and this will cause your problem as well.

Posted on May 01, 2011

czaa
  • 4536 Answers

SOURCE: i have a 2001 dodge

waterpump is failin and pretty soon will not perform--while fixin it change timing chain/belt or engine seal--ride is 10yrs

Posted on Jun 06, 2011

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open the hood and look on the firewall. There should be 2 rubber hoses going into the firewall and into the truck. If factory they will have spring clamps just like on the radiator hose. Remove both lines. Then get a hose and put it in one line and run the water until it comes out clear. Then do the same thing with the other side. Do this a couple of times. Then reconnect the 2 hoses and check the level of the radiator. Then start the car with the radiator cap off and wait a while for the thermostat to open and have the heater on so it will cycle through the whole system. Then top off as needed. This should fix your problem Tim

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