General Comments:
The Toyota Lite Ace 1.5 gasoline engine is really reliable if you take care of it. The Toyota company is always making their cars as reliable as possible. If you always maintain your LA you can get the most out of it. After all, it's just a commuter van and it was not built for speed.
It has a big space to fit the whole family. One time we had 14 people in the car (I know it's overloading) but it got up on Mambukal Resort on Murcia. Negros Occidental. It didn't stop or overheat. It handle itself pretty well.
If you are still having problems with overheating, start small. If you really love your car, you should know what's not supposed to happen.
First things first! If your car is overheating, check the alternator, compressor, water pump, and distributor if it's not moving properly (stuck or bearings, bushing worn out). If it is then sort that out first.
Some stuck up mechanism may put too much load on your engine, resulting to overheating and bad fuel economy.
Second! Check your radiator cap, reservoir, water pump and water jacket (at the back of your cylinder head) to see if there are any leaks. Later models doesn't really need thermostat because there is always a by-pass.
Check your reservoir; if the coolant is coming back, then you have a head gasket problem.
Third! Head gasket. Change your head gasket at 7k. It's the same and a 7k head gasket has more than holes than the 5k head gasket. Don't forget to put the head gasket shell back to prevent air or water from getting in the chamber.
Fourth! Change your transmission and differential fluid so that your car can move like it's brand new again.
Fifth: Change the engine and transmission mount. So that the vibration of the engine isn't transferred to the body of the car.
Sixth: Change your engine oil to Caltex Delo Gold or Valvoline 5w-30 to make the engine run better again and change your valve stem.
Seventh: Buy a whole lot of dw-40 and spray on rusty parts like doors or handles.
Final!: Buy a new carburetor. From Corolla or Tamarraw FX to make the vibrations of the car go away when revving it up to a higher speed.
Note: if you're not using the aircon (literally) or if it is not working then remove the compressor. It removes load from the engine.
26th May 2014, 06:04
Your post is very encouraging, and I myself am a proud owner of a LiteAce GXL 1993. Though my ride is a bit temperamental. When I change gear from a high gear to a low gear, it suddenly loses power. This is where I need your advice on what to do. By the way, it happens when I have my air con turned on. What are the changes that I have to make? I seek your advice. Thanks in advance.