Engine doesnt warm up!
#1
Engine doesnt warm up!
Hey guys, I have a 1994 Pickup 22re, that doesn’t want to get to operating temperature, I know it can’t be the sensor because after driving a while, the lower radiator hose is not hot, I can hold on to it. The thermostat is 190F and works fine, the fan clutch seems to be fine, it doesn’t engage because the truck doesn’t get up to temp, I know it works because I can here it roar on a cold start then come back down, this one has me stumped. I don’t know where to go from here, if anyone could give me a couple points that would be greatly appreciated. Thanks
- Cesar
The gage doesn’t rise any higher than this!
- Cesar
The gage doesn’t rise any higher than this!
#3
Registered User
Join Date: Jul 2012
Location: Northern Colorado
Posts: 1,776
Likes: 0
Received 110 Likes
on
82 Posts
If you've tested the thermostat and it indeed is not opening until 190 degrees, it's pretty hard to believe the engine isn't coming up to temperature. With a closed thermostat, the engine will warm up.
The lower radiator hose is the outlet of the radiator, so one wouldn't expect it to be all that hot.
I would suspect a sensor/gauge problem. Get an IR thermometer and measure the temperature of the top hose at the outlet of the thermostat when the engine is "warm".
Also, does your heater put out significant heat? That's a good test of whether or not the engine is warming up properly.
The lower radiator hose is the outlet of the radiator, so one wouldn't expect it to be all that hot.
I would suspect a sensor/gauge problem. Get an IR thermometer and measure the temperature of the top hose at the outlet of the thermostat when the engine is "warm".
Also, does your heater put out significant heat? That's a good test of whether or not the engine is warming up properly.
The following 2 users liked this post by RJR:
Cesar Telles (01-21-2020),
millball (01-21-2020)
#4
Registered User
This fit my factory '92 radiator, good way to confirm stock gauge/sending unit & t-stat are working correctly. Seems very accurate:
The following users liked this post:
RAD4Runner (01-21-2020)
#5
Registered User
This fit my factory '92 radiator, good way to confirm stock gauge/sending unit & t-stat are working correctly. Seems very accurate:
radiator cap w/temp gauge
radiator cap w/temp gauge
The following 2 users liked this post by STERFRY333:
old87yota (01-22-2020),
RAD4Runner (01-21-2020)
#6
Yes, That's Nice Paul!
#7
Registered User
link:
The following users liked this post:
RAD4Runner (01-21-2020)
Thread
Thread Starter
Forum
Replies
Last Post
blandis
95.5-2004 Tacomas & 96-2002 4Runners
16
12-16-2013 06:08 PM
00SR5
95.5-2004 Tacomas & 96-2002 4Runners
1
12-27-2011 06:01 PM