The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-19-2012, 07:22 PM   #1
TIM86
Registered User
 
TIM86's Avatar
 
Join Date: May 2011
Location: St.Petersburg,FL
Posts: 158
another overheating issue........

My 350 starts to overheat on occasion. Its fine when its idle. Just does while driving. The thermostat, fan clutch and upper radiator hose were changed less then a a year ago. Is there anything else I should be looking for?
Posted via Mobile Device
TIM86 is offline   Reply With Quote
Old 03-19-2012, 07:31 PM   #2
Dieselholic92
Registered User
 
Dieselholic92's Avatar
 
Join Date: Feb 2012
Location: Lynd, Minnesota
Posts: 201
Re: another overheating issue........

are the fins of the radiator plugged up with junk? Did you notice a lot of corrosion when you replaced the thermostat or the upper radiator hose? What kind of shape is the water pump in?
__________________
Semi professional heavy equipment operator
Amateur mechanic
Dieselholic92 is offline   Reply With Quote
Old 03-19-2012, 08:13 PM   #3
Tucson38
Registered User
 
Join Date: Aug 2011
Location: Tucson Arizona
Posts: 164
Re: another overheating issue........

You might try having the radiator rodded out, could be a lot of funk in the tubes. Backflushing may help also. Does the coolant look rusty or muddy? I suggest using only antifreeze and DISTILLED water in the radiator.
Tucson38 is offline   Reply With Quote
Old 03-19-2012, 08:50 PM   #4
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: another overheating issue........

Does your rig have ac? Ac rad gets clogged real easy. Especially imbetween the two
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:55 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com