Question about Nissan Hardbody

1 Answer

Runs hot at idle and on highway replaced fan clutch thermostat flush and fill

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,382 Answers

Hi, you have either a bad cooling fan motor, or a bad relay for the cooling fan motor.

When it begins to heat up, look and see if the fan is running. You can go to a parts store and buy the relay, they will show you where to put it in. If that doesn't fix it, then you need to have the fan motor tested. It could also be a circuoit in the computer gone bad. This happens quite frequently.

The reason it heats while at idle but not while moving is, when you are moving, air flows through the radiator. When stopped, the fan has to push the air. If you have AC, all fans should run when the AC is on.

Posted on Mar 30, 2011

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Engine running very hot. changed thermostat and electric fan is running


Try flushing your block and radiator! could be stopped up

Aug 07, 2012 | Cars & Trucks

1 Answer

Temp fine at highway speeds .. heats up at idle


Check your fan clutch- is it engaging when idling and at op temp if not then chances are the clutch is bad.
Replace your thermostat it's usually a cheap and easy fix
it just sounds like you have enough air going through into the engine compartment to cool it down but when you have no air going through at idle it heats up which leads me to believe it's something to do with the clutch fan or thermostat.
How much more does it heat up at idle as opposed to driving on the highway? check your thermostat ratings if possible i believe my firebird's thermostat is rated for 195 degrees. If the engine temp is exceeding the temp your thermostat is rated for then something else is going on.
Always look for the small things first and replace them if you need to before replacing anything big like the water pump which isn't too hard but is time consuming. Hope this helps. Good luck.

Sep 01, 2011 | 1993 Pontiac Firebird

1 Answer

2004 dodge 1500 hemi, 5.7,.....running hot at highway speeds,I have flushed the system 2 times, replaced thermostat.....still runs hot at highway speed.....I have read about " back flushing the...


If running ok at idle and not running hot, then I'd first examine my rad hoses very carefully, especially lower rad hose. If old and soft, easy to squeeze then replace it/them. Also replace rad cap as well. A soft hose may be collapsing when engine RPM increases, and restricting flow through engine. Next would be to observe water flow with engine running to be sure water pump is doing it's job. I assume you have cleaned and checked rad already. Note: if you run at highway speeds and it gets hot, try turning heater on high fan and hot setting to see if temperature gauge goes down at all, which would make me lean toward a faulty radiator.

Aug 03, 2011 | Dodge Ram Pickup 1500 Cars & Trucks

3 Answers

I keep overheating changed out thermostat and fan and still overheating I fill the hose with coolant and it all goes into the overfill tank and gets hot and boils out


A clogged radiator could be your problem. Flushing won't necessarily clean out a clogged radiator.
When it's idling and getting hot, the clutch fan should be running full on, actually "roaring" as some say, and the electric auxiliary fan or fans should be on if you have them. Also test your radiator cap, replace if needed. Hope this helps.

Jul 03, 2011 | 2003 Dodge Durango

2 Answers

Car running hot when idle not on highway. What could be the problem?


replace thermostat and fluid be sure and flush radiator first and add correct fluid,there are certain types of fluid that must be used.

Mar 23, 2011 | 2001 Cadillac DeVille

2 Answers

Change water pump, thermostat ,radiator but truck still hits 240 on highway but stays at 215 at idle. why am I hitting such HI TEMP ON HIGHWAY BUT NOT AT IDLE?


SOUND LIKE COOLING FAN CLUTCH BAD. CHECK FAN CLUTCH SHOULD HAVE RESISTANCE WHEN YOU TRY TURNING FAN BY HAND WHEN ENGINE HOT.IF NOT COOLING FAN CLUTCH FAULTY.

Dec 10, 2010 | 1996 Dodge Ram

2 Answers

HI. MY CADILLAC SEVILLE V8 4.9L '93, STILL OVERHEATING. I REPLACED: NEW RADIATOR, FAN MOTOR, THERMOSTAT, WATER PUMP. SOMETIMES DRIVES GOOD AVERAGE 180 DEGREES, BUT AT NOON INCREASE 240, 255. I DONT KNOW...


Ensure motor tune or other motor mechanical condition is not the cause of overheating, I assume the motor is actually running hot, - ensure the high gauge reading is not just a gauge sender problem. Check cooling fans are operating ok (as necessary when car warms up):- if not check
1) fuse,
2) relay operation,
3) heat sensor switch.

Check the coolant pressure cap is serviceable & of correct rating,
Ensure cooling system is correctly filled, bleed off any airlocks as necessary when re-filling,
Ensure radiator hose on suction side of waterpump is not collapsing at engine revs above idle (due softening),
If the motor has been severely overheated, the head gasket could be blown - look for combustion gas bubbles in the coolant resevoir.

If none of the above fix your problem, replace the thermostat again - it is not unheard of for a new thermostat to be faulty .

Sep 03, 2009 | 1992 Cadillac Seville

1 Answer

Gauge reads Hot but truck doesn't appear to be overheating - help


is antifreeze dirty looking and if was changed was it chemically flushed?

Jul 06, 2009 | 2002 Nissan Frontier Crew Cab

2 Answers

2000 Maxima overheating


when you engine reaches temp do the radiator fan/s kick on?

Aug 30, 2008 | 2000 Nissan Maxima

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

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

Answer questions

Manuals & User Guides

Loading...