Siena:

Removing the thermostat from any car isn't a good idea. It simply masks an underlying issue. Have the system pressure tested - an overheating engine could be caused by a myriad of problems - blown head gasket, cracked cylinder head / block, thermostat stuck in the shut position, a clogged radiator, inoperative cooling fan or even the wrong fuel / spark plug grade.

Removing the thermostat will simply make the engine over cool, which is bad. It will increase fuel consumption, as the engine CTS (coolant temperature sensor) will assume the engine's not up to normal operating temperature, and simply inject more fuel in. This will cause premature engine wear, as the excess fuel will wash the oil from the cylinder bores (bore wash).

Get your car checked by a competent engineer, and I don't mean the masquerades by the roadside, who don't know one end of a spanner from the other. Best of luck.

Matey, You are tooooo good. You certainly know your onions.

No fellow can take that away from you.

About time you should really look into "Siena Autocentre Nigeria"     

VV2A:

@German

You had a different perspective here

https://www.nairaland.com/nigeria/topic-417568.64.html

Clarify pls. Thank you

elitper: Dear Nlanders, just took delivery of 1996 camry. The car is good except that it is overheating. I am divided between those who say I should yank off the thermostat and those who think I should change the radiator altogether. A couple of people also feel I should just give the radiator a good wash. Wise ones, please help.

kenneth.se:
Dear Nlander, I live in the caribbean and I was advised by my machinic to remove my thermostst because of the climate, he says thermostats were designed only for temperate countries.

kenneth.se:
Dear Nlander, I live in the caribbean and I was advised by my machinic to remove my thermostst because of the climate, he says thermostats were designed only for temperate countries.

Joshcoli:

Exactly what my mechanic told me too

The thermostat is just a valve that goes between the engine and the radiator. It's purpose is to keep the engine at the proper operating temperature. When the engine gets too hot, the thermostat opens up and lets the engine coolant flow through the radiator, where it cools off. When the engine is too cool, the thermostat closes and stops the coolant from flowing through the radiator, so the engine heats back up.

But taking out the thermostat can actually do quite a bit of damage on a modern car. Most cars now have computers, which constantly monitor the engine temperature and adjust things accordingly. If the computer thinks the engine is cold--and it WILL be cold without a thermostat--it'll richen the fuel mixture. That will lead to poor mileage, carbon buildup, and eventually, a $400 repair bill for a new catalytic converter.

kenneth.se:
Dear Nlander, I live in the caribbean and I was advised by my machinic to remove my thermostst because of the climate, he says thermostats were designed only for temperate countries.

kenneth.se:
Dear Nlander, I live in the caribbean and I was advised by my machinic to remove my thermostst because of the climate, he says thermostats were designed only for temperate countries.

honmusa: hello all,
I need to replace my thermostat cos my vehicle(Nissan Primera p11 1.8 engine ) is overcool and fuel consumption is high(average of 30L/100km) ,and all the mechanics and part dealer i have try to get this from are unable to get one for m

aeu1: ^^Ikenna & co, thanks for your interest. Please assist me. Where can I buy a good thermostat for 1999 Toyota Corolla. Can you find a place in Abuja or elsewhere cos here in Uyo, I dont know where to get it. Kindly respond

kennethse: Dear Nlander, I live in the caribbean and I was advised by my machinic to remove my thermostst because of the climate, he says thermostats were designed only for temperate countries.

sandunruki:
I have Corolla AE100 96auto. I found that Thermostat was removed by previous mechanic. 3 years im driving without thermostat. Most of the times temperature meter readings below the half line. After long drive it reach to the half level.

I live in Sri Lanka and my mechanic instruct me to install new thermostat. Now its always at the half line of the temperature meter. But i found some Radiator leakage and went for radiator mechanic. He advise me to remove the Thermostat valve immediately. He said its not needed the country like us.

So i told this incident to my USA friend Handawala and he instruct me to keep the thermostat and find a good Radiator guy.

I surf this thread and learn lots of things about Thermostat. Thanx all for your valuable comments.

FPoints:
@dsumnade

I would reinstall the thermostat, then service the radiator, by flushing and adding some additives which seal radiator leaks.

The mechanics in naija, for the most part are illiterates and often times, take things out of cars saying things like ' the car doesn't need it'. Why did the car manufacturer install the part? Things that make you wonder.

Please don't let any mechanic take out parts from your cars!