View Full Version : cooling system problem

10-14-2008, 06:41 PM
this has been on going for awhile now. ok . i have a 22r with a 3 core rad. my truck has not over heated nothing yet . but when i drive the truck for along or short drive the bottom rad hose never gets hot its cold hmmmmm? i have been scratching my head for a long time about this. i change the thermostat a few times . tryed different temp thermostats. the upper hose is hot , the heater hose going in to fire wall and coming out are hot but the bottom going back into the rad is cold.

but now if i was to pull the thermostat out and run it around the bottom rad hose gets warm . :confused0006: . my fan runs continiously. maybe chage to electric and get rit of the pulley fan.

if anyone has an idea or can lead me in the right direction . i am open to any suggestion.

10-14-2008, 08:36 PM
has the water pump ever been changed ?

acidic antifreeze conditions will actually eat away the fins on the pump , hindering the "flow" .

10-15-2008, 09:38 PM
i will check the water punp . can't remember when i changed it last . thanks for the heads up

dirka dave
10-15-2008, 10:01 PM
W/P fan coulpler could be siezed....

Do you have a temp gun ?

10-16-2008, 07:28 PM
no i do not have one . i am going to borrow one from one of my mechanics from my shop hopefully. i am also think clogged rad . after the run on sunday i am going to take the rad out get it checked and take a look at the water pump. i'll be at the newbie run if yu have a temp gun could you bring it along . check while i am there it will be hot seeing that i am coming from burnaby. my mechanic is gone for the weekend now . [cheers]

dirka dave
10-16-2008, 07:40 PM
I'll try to rember to bring it home from work...

10-16-2008, 08:29 PM
ya its know big deal if u remember kool if not no worries . see ya sunday [cheers]

82 yota
10-18-2008, 07:22 PM
is the motor temp normal?

10-20-2008, 06:30 PM
i have to gauges running. one by the thermostat and one on the block they both give different readings the block one is hotter then the other which reads normal

dirka dave
10-20-2008, 06:42 PM
Damm, I brought my thermo gun on the New B run yesterday too.

10-20-2008, 07:31 PM
also check the clutch fan.if you can spin the fan easly when the engine is NOT running its no good

10-22-2008, 07:05 PM
Damm, I brought my thermo gun on the New B run yesterday too.

i forgot to ask if u had it with you. thanks anyway dave. it was nice meeting you as well [36]

10-26-2008, 10:20 PM
Are you sure you burped all the air out of the system?