overheating when idling or up hills - Engine Troubleshooting


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

WHATSAPP : +1(443) 720-5561 Buy fake usd/aud/cad/JPY/CNY/GBP/euros/pounds/dollars

WHATSAPP : +1(443) 720-5561 Buy fake u...

2014 Nissan Sentra Shaking

Car recently started shaking when accele...

Buy Flualprazolam Powder Online Whatsapp: +1(424) 328-1086

N/A

1989 toyota pickup 3.0 crank no start

I have a 1989 toyota pickup 3.0 crank no...

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

overheating when idling or up hills

Sign up here!

Search for (search options)

Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

carriejj
New User

Jan 8, 2007, 12:02 PM

Post #1 of 3 (1940 views)

overheating when idling or up hills	Sign In

my 1990 Isuzu trooper wants to overheat when idling or going uphills, but is fine everywhere else. It's been doing this for about 2 years and has recent new radiator and hoses, water pump, timing belt, and spark plugs. any ideas? thanks

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 8, 2007, 12:24 PM

Post #2 of 3 (1937 views)

Re: overheating when idling or up hills	Sign In

Sounds like a fan for radiator problem. If a clutch get a new one if more than a few years old. Next would be the quality of the condition of the radiator. Take a look at it you may see that it's junk from the outside, T

DanD
Veteran / Moderator
DanD profile image

Jan 9, 2007, 5:26 AM

Post #3 of 3 (1931 views)

Re: overheating when idling or up hills	Sign In

I agree with Tom have the thermostatic rad fan clutch tested. It sounds to me that there is not enough airflow through the rad at times to cool the engine.
These fan clutches are designed; that at low RPM and/or high temperature the clutch locks up and drives the fan blades as fast as the engine is turning; drawing lots of air across the rad fins. This also takes a far bit of power for the engine to drive the fan; lowering performance and fuel mileage.
When you’re cruising down the highway under light load there is enough air flowing through the rad to keep the engine cool. At that point the clutch relaxes and allows the fan to free wheel. Giving the power to drive the fan back to the rear wheels, increasing performance and fuel mileage.
Sorry for the fan clutch 101 explanation but I thought if you knew what it was you’d understand why we’re saying have it checked.
Dan.

Canadian "EH"

Search for (options) Privacy Sitemap