Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN




Engine won't come up to temperature


  Email This Post



EJT
Anonymous Poster
ed.thomas@ch2m.com

Apr 8, 2009, 11:14 PM

Post #1 of 2 (1128 views)
Shortcut
Engine won't come up to temperature Sign In

95 GMC, 1/2 ton, 4wd, 5.7L, 160K miles. The temp gage has been reading ~170 def F for some time, going on over a year. I don't recall it suddenly going down, but approx a year ago I replaced the thermostat with no change, and then changed the gage temp sending unit with no change. At that point I thought I had a bad gage and just lived with it. With summer approaching I decided to get an aftermarket gage that I propped up on my dashboard. I was surprised to see that it matches the dash gage. So if I have a good 195deg thermostat, how can the engine not be getting to 195? No codes have been thrown.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Apr 9, 2009, 10:07 AM

Post #2 of 2 (1121 views)
Shortcut
Re: Engine won't come up to temperature [In reply to] Sign In

If the 170F is the true and steady operating temp it really can only be blamed on the thermostat. That's about what I'd expect to see if a 160F thermostat was installed - almost no vehicles should be using those but they are sold everywhere. Might even be a mistake in manufacture.

Once at operating temp the reading should stay very steady. If it's fluctuating now and not overheating it may be leaking past the thermostat somehow. Upper hose should remain cold from a cold start and stay cold for several minutes. If there's any temp increase noticed early at the radiator end the thermostat isn't working properly.

If you can take a temp reading right at the housing of a thermostat is should read pretty close to it's rating once warmed up,

T
_________________________________________
Long retired now




Advertising


  Email This Post
 
 






Latest Forum Post

Hi There, I have a 92 Toyota Camry / Scepter with 236,635 kms / 147,038 miles. ...


I'm part of a research project at my university where we have two flow meters mo...


Hi, About 1.5 years ago I purchased a 2003 Honda Civic EX with 130,000 miles on...


Hi car experts, I'm hoping you can help me fix my car. Below is a description o...


98 Pontiac sunfire,2.2,new cylinder lock won't install,something in side the cyl...


Greetings, I have a 91 honda civic that I was taking up a small hill on the in...


Feed Button






Automotive Forum Categories
AC Auto Repair
Auto Body Repair
Auto Insurance
Automotive Repair
Automotive Wiring
Automotive World
Brake Systems
Car Care Tips
Car Racing
Car Shows and Events
Car Stereo Repair
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair
Gasoline and Motor Oils
General Discussions
Motor Vehicle Inspection
Motorcycle ATV Repairs
Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Repair
Motorcycle Seat Repair
Remote Control Cars
Steering and Suspension
The Bargin Bin
Traffic Ticket Help
Tricks of the Trade
Truck Repair
Truck Repair Advice
Truck Engine Repair
Truck Suspension Repair
Car Forum - Sitemap


Search for (options) Privacy