Question about 1993 Nissan Pathfinder

1 Answer

My 93 nissan pathfinder runs hot, well so the gauge tells me the overflow will let coolant out but thats the only place its going. there is no signs of oil in the rad or antifreeze in the motor oil. Also it will drop down to below half at random and sometimes if its heating up i will turn the heat on and there is nothing. but when i rev it up the temp goes down and the heat comes out pretty much right away

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 34 Answers

Not a whole lot can cause overheating but at first thought sounds like your water pump may not be pumping sufficiently. usually there will be a sign of seepage coming out of a weep hole in the bottom of the water pump, or it will be making a squeaking noise. could be possible that your thermostat could be clogged which would also explain the heater issue as well as the extra rpm needed to cool the engine. first thing i would check is the radiator cap seals. if that is ok i would change the thermostat. those are the two easiest and cheapest fixes if thats not it poss. will be the water pump. also the reason it could be cooling when you rev it up because if im not mistaking it has a clutch fan and the faster the rpm the faster it turns

Posted on Aug 07, 2010

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:

2 Answers

Why is water overflowing my resivor on my pathy


If I understand correctly, your coolant (water) is overflowing out of your resevoir? Either you have too much coolant, and it doesn't have any place to go, or it is boiling over. Remeber even water expands when hot.

Aug 09, 2013 | 1989 Nissan Pathfinder

1 Answer

Water flowing out of radiator when idling 93 nissan terrano v6 petrol auto trans


If the coolant was hot when you noticed water coming out the radiator, that is normal from the heat expansion of the coolant. That is why there are coolant overflow tanks-also called coolant expansion tanks.
When refilling coolant, always top up the radiator, and fill the overflow tank to at least the cold mark level (about half-way up on the tank). With cap off, run engine till the thermostat opens- upper radiator hose will become hot-then shut off engine, add coolant to radiator as needed, replace cap. This method of filling will help to expel any trapped air in the system. Oh, and remember to set your heater controls on high when filling coolant, so the heater core and lines also circulate and expel air.
Check the seal on the radiator cap that it is still good. The cap seal is important to seal the coolant system, as it is a closed system under about 15 psi of pressure. The reason to pressurize the system is that the pressure will raise the boiling point of the coolant by about 10 degrees- important when you consider how hot the coolant has to be when running. OK, enough tutorial-I don't think you have a problem with the water pump! G'd luck, reeve.

Nov 22, 2012 | 1993 Nissan Pathfinder

1 Answer

2001 chevy malibu temp gauge stopped working.. car didn't run hot but coolant was also empty. But saw a signs of a leak. Replaced coolant and after 20 mins.. gauge worked again.. not sure if it was a...


With no Hot Coolant going past the Sensor, you get a false reading.
Low coolant is why the sensor wasnot telling you the engine was running hot.

Oct 03, 2012 | Cars & Trucks

3 Answers

I replaced my radiator on my 2004 with a 2.2 and it seems like the thermostat is not opening. It can not get the air out. It seem to just to over heat and push the coolant out. Randy


REPLACE THERMOSTAT IF TOP COOLANT COOLANT HOSE GOING TO RADIATOR IS HOT TO TOUCH THERMOSTAT OPEN. TO BLEED COOLANT SYSTEM FIRST YOU NEED TO ADD COOLANT TO THE COOLANT OVER FLOW JUG UNTIL COOLANT LEVEL STOP DROPPING AND STAY AT FULL COLD MARK.WAIT 3 MINUTES IF COOLANT DROPS ADD MORE COOLANT UNTIL COOLANT STAY AT FULL COLD MARK.WITH RADIATOR OVER CAP OFF CRANK ENGINE FOR MINUTE WATCH COOLANT LEVEL AT OVERFLOW JUG.IF COOLANT DROPS ADD MORE COOLANT IN THE OVERFLOW JUG.WHEN COOLANT LEVEL STOP DROPPING IN OVERFLOW JUG.SCREW BACK ON THE RADIATOR CAP TO OVERFLOW JUG.WHILE ENGINE IDLING WATCH TEMPERATURE GAUGE WHEN TEMPERATURE START CLIMBING TURN OFF ENGINE WAIT A WHILE KEEP FROM GETTING SCALDED.WHEN COOLANT COOL DOWN SOME. PLACE A LARGE RAG OVER THE COOLANT OVERFLOW JUG OPEN CAP LITTLE AT A TIME UNTIL PRESSURE RELEASED, THEN REMOVE CAP ADD MORE COOLANT IN THE OVERFLOW JUG TO THE FULL COLD MARK.THEN REPEAT THE PROCESS SCREW BACK ON THE COOLANT OVERFLOW RADIATOR PRESSURE CAP.THEN START ENGINE WATCH TEMPERATURE GAUGE WATCH COOLANT TEMPERATURE GAUGE WHEN COOLANT TEMPERATURE START RISING TURN OFF ENGINE AGAIN WAIT UNTIL ENGINE COOL DOWN ENOUGH TO KEEP FROM GETTING SCALDED TAKE PLACE LARGE RAG OVER RADIATOR CAP WHICH IS THE COOLANT OVERFLOW JUG CAP OPEN CAP LITTLE AT A TIME UNTIL PRESSURE RELEASED ADD COOLANT UNTIL AT FULL COLD MARK. WHEN YOUR COOLANT LEVEL STOP DROPPING.AND TOP RADIATOR HOSE VERY HOT THERMOSTAT OPEN AND AIR IS OUT THE COOLANT SYSTEM. MAKE SURE YOUR COOLANT OVERFLOW JUG HAS COOLANT IN IT,WHEN ENGINE COOL DOWN CHECK COOLANT OVERFLOW JUG KEEP COOLANT LEVEL AT FULL COLD MARK.BECAUSE IF OVERFLOW JUG IS EMPTY THATS A SIGN RADIATOR COOLANT LEVEL LOW.WHEN OVERFLOW JUG EMPTY IT WILL ALLOW AIR GET IN THE COOLANT SYSTEM AND CAUSE CAR TO OVERHEAT.WHEN REPLACING THERMOSTAT ALSO REPLACE THE RADIATOR CAP ON THE COOLANT OVERFLOW JUG.

Aug 09, 2011 | 2004 Oldsmobile Alero

1 Answer

Need to know if i need to bleed the cooling system, after installing the radiator?


ADD COOLANT IN THE COOLANT OVERFLOW JUG UNTIL COOLANT LEVEL STOP DROPPING AND COOLANT LEVEL STAY AT THE FULL COLD MARK.PLACE COOLANT OVERFLOW JUG CAP BACK ON JUG.CRANK VECHICLE UNTIL ENGINE START WARMING UP. STOP ENGINE WAIT FOR A WHILE UNTIL COOLANT COOL DOWN TO KEEP FROM GETTING SCALDED. USE A LARGE RAG OVER THE OVERFLOW JUG CAP OPEN OVERFLOW JUG CAP A LITTLE AT A TIME REMOVE OVERJUG CAP CHECK COOLANT LEVEL ADD MORE. COOLANT IN THE OVERFLOW JUG.THEN START VECHICLE AGAIN.LET ENGINE IDLE UNTIL TOP RADIATOR GET HOT.THEN THERMOSTAT WILL BE OPEN.WHILE ENGINE IDLING WATCH THE TEMPERATURE GAUGE IN VECHICLE IF TEMPERATURE GAUGE START CLIMBING IN THE HOT ZONE.TURN OFF VECHICLE LET IT SET A WHILE THEN USE LARGE RAG REMOVE OVERFLOW JUG CAP.ADD MORE COOLANT, PLACE CAP BACK ON START VECHICLE AGAIN KEEP DOING THIS PROCEDURE UNTIL TEMPERATURE STOP CLIMBING HOT ZONE.AND WHEN COOLANT LEVEL STOP DROPPING IN THE COOLANT OVERFLOW JUG.AIR IS OUT THE SYSTEM, BUT KEEP COOLANT LEVEL IN THE COOLANT OVERFLOW JUG AT THE FULL COLD MARK.DONT OVERFILL.DONT LET COOLANT OVERFLOW JUG RUN DRY IF SO AIR WILL ENTER COOLANT SYSTEM BECAUSE COOLANT LEVEL WILL BE LOW ENGINE WILL START OVERHEATING.

Jul 24, 2011 | 2006 Dodge Grand Caravan

1 Answer

As soon as I turn on the car its running hot. Sat all night. Coolent is a little low but not bad.


Is the car actually running hot, or is your temperature gauge telling you it is? Even on the hotest day, your engine still has to reach 210F+ before it opens the thermostat, so running hot as soon as you turn the car on, is not possible. Use a termperature gauge to measure the temperature of the coolant in the radiator overflow resevoir, to see if it what it reads.

The only time it will actually get hot almost immediately is when you have a blown head gasket! Are you getting any sign of water on your oil dip stick or and oil scum on your coolant in the resevoir?

Jul 03, 2011 | Ford ZX2 Cars & Trucks

1 Answer

CAR RUNNING HOT AFTER I CHANGED A BAD RADIATIOR OK RADIATIOR HAD A WHOLE IN IT WE CHANCED IT BUT NOW ITS RUNNING HOT HOW DO I PROPERLY REFILL THE RADIATIOR


CHECK COOLANT LEVEL STILL LOW.ADD MORE COOLANT.UNTIL RADIATOR OVERFLOW FULL AT COLD MARK.THEN CRANK ENGINE UP LET IDLE FEW MINUTES LOOK DOWN COOLANT OVER FLOW JUG ADD MORE COOLANT IF LEVEL DROPPED.WHILE ENGINE RUNNING KEEP EYE ON TEMPERATURE GAUGE.WHEN THERMOSTAT HOSE GET HOT.TURN OFF ENGINE WAIT A LITTLE WHILE TO KEEP FROM GETTING SCALD TAKE LARGE RAG PLACE OVER OVERFLOW JUG RADIATOR CAP.OPEN CAP A LITTLE A TIME.IF COOLANT TRIES BOIL OUT.LET VECHICLE SET A WHILE LONGER.ADD MORE COOLANT.WHEN COOLANT LEVEL CORRECT AND ALL AIR OUT THE COOLANT SYSTEM.IT WILL STOP OVERHEATING.LONG AS ENGINE RUNNING HOT TURN OFF THE ENGINE POUR IN MORE COOLANT UNTIL COOLANT LEVEL STOP DROPPING IN RADIATOR.KEEP COOLANT LEVEL IN OVERFLOW AT COLD MARK.DONT OVER FILL OVERFLOW JUG.

Jan 23, 2011 | 1996 Lincoln Continental

1 Answer

2006 pathfinder heater goes from hot to cold the coolant is not low !


This issue may be due to a restricted radiator. The engine heats up but can not flow through the radiator fast enough and pushes the coolant into the overflow until it runs over. Then the engine draws coolant back in showing a low condition.

My suggestion is to check the radiator with an electronic tool for checking temperature. If the temperature is 180 - 200 on the upper hose and 75 - 95 on the lower hose then the radiator needs to be replaced.

A faulty thermostat (stuck open) would not heat up.

A faulty thermostat (stuck closed) would not cool down, but would push coolant out of the overflow tank.

If the vehicle has white smoke (actually steam) coming from the tail pipe, then you most likely have a blown head gasket.

Dec 11, 2009 | 2005 Nissan Pathfinder

1 Answer

98 pathfinder water pump


Chances are if you have a coolant leak right under the water pump, especially with engine running, the inner seal in the water pump is shot & the entire water pump will need to be replaced with a reman / new one. For the amount of hassle required to replace the seal it is worth the couple hundred bucks for the new pump.

There would definitely be overheating problems if the pump were not working at all. You will also have overheating problems present if there is low coolant, make sure the rad is topped up, with heater(s) on "Hot" inside & run the engine until it shows warm on the gauge. Make sure all of the belts are tight & pump looks like its spinning.

Mar 29, 2009 | 1998 Nissan Pathfinder

Not finding what you are looking for?
1993 Nissan Pathfinder Logo

190 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...