Question about Dodge Dakota

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I have replaced the water pump and thermostat on my 2003 dodge Dakota 4.7 liter V8. When driving down the highway the temp is fine. Once I start driving around town less than 30-35mph the temp shoots up. I was told I could have a bad thermostat. What else can be causing this problem?

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Hi! A weak radiator blower can cause this. Temp doesn't go up on high speed for air is surely helping on cooling down the engine. When in low speed, not much air to hit the radiator so it depends on the radiator blower. If the radiator blower is faulty it can't perform well and may result to engine stress that's why the temp goes up. Once the blower is replaced you'll be good. HOpe this helps and thank you for using FixYa!

Posted on Sep 06, 2010

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Posted on Jan 02, 2017

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1993 dodge dakota v8 4x4 runs bad when engine get up to opperating temp.. the truck runs great for about two miles then starts to miss and has nopower. fuel pump went bad I replaced it. the crank sensor...


Sounds very much like catalytic is fouled, blocked.. Works fine when cold, then bogs down and even stalls when heats up. May start and idle but wont go when you press gas.
Did this come on worse over a couple three days? I would get the cat checked for flow.

Jul 19, 2011 | 1993 Dodge Dakota

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Fixed water pump but still it's overheating. Highway driving is fine but once rpms and speed come down temp goes up and it overheats.


It's possible you have a defective thermostat. If coolant is backing up into the reservoir, it's an indication that the thermostat is blocked and not allowing the water pump to draw more coolant.

Feb 17, 2011 | Chevrolet Equinox Cars & Trucks

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I have a 2001 dodge durango 4.7 v8 and I just replaced the radiator , exirliry water pump and regular water pump as well as 5 thermostats my truck is still over heating blowing ice cold air for heat and...


Have you checked the temperature sending unit? It reads the temp of your engine and sends the information to the engine to open or close thermostat. If it is not functioning properly it may not be having the thermostat open. Leading to overheating. I hope I could be of some help to you.

Jan 31, 2011 | 2001 Dodge Durango

2 Answers

My truck starts running hot then I turn the heater on and it blows cold air but every once in a while the heater will throw out hot air. Then the temp gauge will go down. I've check med the radiator cap...


I'd still check the thermostat. Or basically just replace it. Have you ever drained all the antifreeze and flushed the system? Good time to do both. If the hose's get real hot that doesn't really mean the thermostat open. Wouldn't they get hot even if the thermostat didnt open.? If the thermostat was stuck open you'd would have cold air and low temp gauge. Then maybe hit a pump or something and have the thermostat stick closed and have high temp. Maybe water pump. Check it when you have the belt off. Spin, pull & push the water pump pulley around. I'd replaced my water pump at about 110,000 on a '97 dodge Dakota. My 97 never had a very good heater. Always heated up more after driving. Idle never got it warmed up.

Jan 14, 2011 | 1999 Dodge Dakota

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I JUST CHANGED THE WATER PUMP AND THE THERMOSTAT IN MY 2004 3.7 DODGE DAKOTA AND IT IS OVER HEATING WHAT DO YOU THINK THE PROBLEM IS?


water pump could be shot. but i'd try a lower temp thermostat first. might just not be opening up

Apr 03, 2009 | 2004 Dodge Dakota

1 Answer

How to replace water pump on 1995 dodge dakato 5.2 liter V8


When I do those I find it's easier to get some of the stuff out of the way. Fan shroud, Alternator, AC compressor(don't remove AC hoses just swing it over to the side) and the AC/alternator mount bracket. If you don't have the special hose clamp plyers they are worth buying. (those clamps are difficult with regular plyers) The fan clutch has a special wrench which is thinner. When you start the job break loose the fan clutch before you remove the belt. It keeps tension on the pulley. The nut is normal threading and usually comes loose with a sharp rap of the hammer on the fan clutch wrench.
Here is an illustration of the water pump bolts. I hope this helps you out. let me know how it goes.6f7219e.gif

Feb 20, 2009 | 1995 Dodge Dakota

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