When it reallly cold will not start - 1991 Toyota Corolla

What you seek is not likely to be found...your a/c is a standard feature...better to resolve a/c pulley issues rather than trying to bypass!

It could be your temp sending unit is going weird on you. As long as the radiator is full it shouldn't overheat because the resivoir is empty. So is the engine reallly overheating? If it is loosing enough coolant to overheat and you don't see any leaks, that would be a head gasket. You can check that by taking a spark plug out, there is usually antifreeze on the one where the leak is. or the plug is really clean where the others are dirty.

While you are comparing day to day events, you are overlooking the problem is consistent with the Mornings' first start. The engine is hard to start after sitting overnight.

The cold start routine is a setting that is suppose to reboot after the engine cools down. This is controlled by a temperature sensor which can be a water sensor or block heat detector. If you have a water gauge you can have 2 similar components and the component that works the water temperature gauge is on a different circuit than the Engine Management control.

Your defective sensor instead provides the temperature information to the Engine Management computer. It cues a change in fuel mix and timing so that the engine starts better and remains at a higher RPM for short time. If you have ever had a car with a carburetor, it duplicates the "choke" function.

Consult an autoparts store for a correct part and its location. At most, there will be some spillage of Antifreeze but it will be minimized if you do it with a cold engine.

Please rate my info.

No you have to order it

Most people buy of the dealer inventory

I only order from the factory so I get what I want

Only need in Alaska or Northern Canada if you
leave outside at 30 below

tHE THROTTLE BODY MAY BE DIRTY. GET A CAN OF CARBERATOR CLEANER REMOVE RUBBER TUBE ATTACHED TO TOP OF ENGINE ON DRIVERS SIDE SPRAY CLEANER ON CLEAN RAG OPEN THE THROTTLE PLATE BY HAND REMOVE ALL BLACK CARBON BUILD UP FROM INSIDE OF THROTTLE BORE ANB ON THE PLATE TUN KEY ON THEN OFF 3 TIMES THIS MAY REPAIR THE PROBLEM

NO, there shouldn't be anything that would prevent spark for safety reasons.

Try checking your coil.

if its roaring reallly loud with the fan on high you might have a plugged cabin air filter,its behind the glove box,you should be able to pick one up at a local parts store,hope this helps

THE BEARINGS CAN BE BAD AND THE WHEELS TIGHT.THE WHEEL BEARING IS A SEALED ROLLER BEARING.

HI, You need your coolant temperture to run 195 degrees, start by replacing thermostat with correct part and re-check..