Your manifold eas just replaced last mo a new alternator and belt the car is still overheating only 81000 miles any help would be appreciated you have a mechanic you hope he is being honest cheryl?

Answer 1

Overheating is usually a simple problem for a competent mechanic to find and repair. It is usally one of a couple problems: Thermostat, blocked radiator, water pump, temperature "riser" or the timing is waaaay off. The car wouldn't be running very well if it's the timing, so I doubt that one. One way to determine if the problem is the thermostat, remove the thermostat and see if the vehicle runs cold. With the thermostat removed and the engine running, remove the radiator cap and see if the water is flowing rapidly through the radiator. If not, you either have a partially blocked radiator or a damaged waterpump. The temperature "riser" is a mechanism that allows exhaust gasses to flow across a passage through the intake manifold to pre-warm the air being drawn into the engine and to cause quicker "warm-up". If the temperature riser is stuck in the open position, you could need an intake manifold, but that's quite rare. In any case, a good mechanic should be able to find the problem through responsible diagnostic methods. Incompetent mechanics just replace parts until the problem goes away.