Question about 2000 Dodge Ram 1500 Truck

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2000 dodge ram van 1500 Overheats when A/C is On

We have a 2000 dodge ram van 1500 that overheats whenever we're running the a/c. What could be possible causes of that?

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  • Dodge Master
  • 21,873 Answers

The most common cause is not enough air flow thru the radiator, because of a cooling fan problem.

Posted on Jul 12, 2013

  • 2 more comments 
  •  Doug Cutting
    Doug Cutting Jul 12, 2013

    Thanks, I'll take a look to confirm the fan is working. If it's not, would it be a fuse/relay or just a bad fan motor?

  •  Stephen
    Stephen Jul 13, 2013

    Well if it is not running you would need to check for power and ground at the fan motor if it is electric.

  •  Doug Cutting
    Doug Cutting Jul 14, 2013

    Could it be related to the whining noise when the a/c is turned on? A/C Clutch maybe?

  •  Stephen
    Stephen Jul 14, 2013

    Well a faulty ac clutch would not cause the engine to run hot. Unless the serpentine belt was slipping somehow.

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Dodge Ram 1500 VAN year 2000

error code 0301 is Cylinder 1 misfiring. Check to ensure plug wire is on, if so, pull plug and check to see if needs replaced.

error code 0645 is Air Conditioning (A/C) Clutch Relay Control Circuit. It could be shorted out, or more likely the fuse is bad. Check fuse in box under hood on drivers side, fuse is about $15.

Posted on Sep 07, 2008

motor1258
  • 6674 Answers

SOURCE: 98 dodge ram overheating with no heat

Did you have your heater running when you refilled coolant after water pump changed?

Posted on Jan 20, 2009

greg_margo
  • 1959 Answers

SOURCE: firing order for dodge 2001 ram van 1500,

Here you go:
5.2L and 5.9L engines Firing order: 1–8–4–3–6–5–7–2 Distributor rotation: Clockwise

Diagram link below:

http://www.chiltonlibrary.com/content/images/7924/images/79243g14.gif

Best of luck!
Greg

Posted on Jun 14, 2009

  • 580 Answers

SOURCE: my 2000 dodge ram 1500 van 5.2 litre as I am driving it will die

If you don't do much highway driving with your van you may have a carbon build up try some fuel njctor cleaner and mid grade gas for a tank or two If you go with the fuel additive rev your engine and watch for moisture and carbon from your exhaust contine to do this till exhaust is clear do not over rev ie do not hold it to the floor press he accelerator pedal and release

Posted on Jul 07, 2009

  • 580 Answers

SOURCE: 2000 dodge ram van 1500 speed sensor. where is it

It is located on the driveshaft

Posted on Jul 07, 2009

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Hello Guest and thank you for asking your question, on Fixya.

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 1997 Dodge Ram 1500 Club Cab, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people like you. So here is the link:
How to diagnose your overheating 1997 Dodge Ram 1500 Club Cab
You might want to pay closer attention to the block test or thermostat sections of these instructions.

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Thanks for the vote, and good luck!

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Overheating/Loss of power


Unless water pump bearing is loose or noisy or the pump is leaking, that's not your problem. Have the system flushed. Thermostat is also likely not the problem but with repeated overheats or near-overheats it will become unreliable so change it as a precaution.

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ONE SUGGESTION COULD BE TO SWAP THE RELAY FOR ANOTHER TO SEE IF THIS FIXES THE PROBLEM. IF IT DOESN'T, THEN PERHAPS THE COMPRESSOR CLUTCH IS STUCK IN THE CLOSED POSITION. UNPLUG THE CLUTCH TO SEE IF THE COMPRESSOR STOPS. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR USING FIX-YA AND FOR AN HONEST RATING. GOOD LUCK

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98 dodge ram overheating with no heat


Did you have your heater running when you refilled coolant after water pump changed?

Jan 20, 2009 | 1998 Dodge Ram 1500 4WD

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