Hi ya'll
I've had my eye on an 85 yota truck for sale, it sounds like the body and interior have been restored. The problem is, it overheats. According to the seller the reason is because of an electrical short that causes the engine to overheat when the heater is on??? This doesn't seem to add up to me, how ever I am a noob He has done some up-grades "LC Engineering EFI Power Package which includes: big bore throttle body, header, performance cam, and Pro Air Intake Kit" he has also installed a thermostat and put in an LC Engineering fan and fan clutch. I'm looking for a little wisdom on the topic before I buy.

Thanks for any info

 

never heard that one before, ive told people if it gets a little hot run heater to hot for a little extra cooling, might be restriction in cooling system, the upgrades sound nice though.
if it runs and not alot of noises or leaks and low or no rust its fixable. try for low price

 

use the search engine...

http://www.4crawler.com/4x4/CheapTri...tml#Thermostat

 

If the ground from the block to the frame is bad it can cause the temp to rise , the reason is it is putting battery voltage thru the block. This happened on at 78 Toyota that I had .

 

x2 overheating with the heater on is almost always that classic temp overshoot issue and it's not really an overheat, it's a design flaw in how the heater lines integrate into intake/head plumbing. This affect some but not all and those of which doesn't affect them at all argue there is no such thing and it's a cooling system efficiency problem. I call BS on that because Toyota knew about this and has made that dual stage thermostat for a reason.

 

Yea, it might just need a dual stage thermostat from Toyota and you'll be good to go.

 

If the price is right and the motor is not dammaged go for it and then fix the problem. Do a compression test. If the problem is just overshoot then you should be ok.

 

Thanks so much for the info... this is a big help if I get the truck I'll post some pics