Toyota Previa - Recent Questions, Troubleshooting & Support - Page 7

Ordinarily the symptom is a result of using gasoline that has a lower octane rating than is recommended. Keep in mind that there may be several other reasons for this. If using a fuel with a higher octane rating doesn't solve the problem you may need to take your vehicle to a mechanic.

Reset-confused are we Code Reader is the safest IF you CLEAR the vehicle of the dash lights, you DO NOT reset anything or fix a thing What your doing, is clearing ALL the vehicles computer data, needed to work on the vehicle & find a problem It is not about fixing anything It is not about you not liking the dash lite up It is about you taking action right away & be aware your vehicle has system faults, that have to be found FIRST Codes do not tell you what is wrong or what to do or replace Just that a vehicle system is out of range & the reason is because congress passed laws to protect the environment & most vehicle systems & electronics are there just to protect the exhaust converter In your case, you have a body computer issue related to a brake problems & not engine performance, as I mentioned above

No. engine mounts, electrics, ecu, axels and a whole lot of other stuff would need to be changed and cut and welded.even after that you could have a host of other difficulties. not an easy task for even the experienced engineer.

If there not on the balancer) it may not have any,only it should T.D,C mark,most car,s are timed by the computer.

have the transmission fluid level checked , replace the fluid if not so done in the last 30k miles , if does'nt help will need further diagnosing

In the USA the Estima is called Previa, and there may be some differences, depending on whether it has the 2.4L or a 2.2L engine or other options. Labor Time for this job is One hour. The water pump on the 2.4 Liter engine is accessed under the vehicle, very likely the same on any engine for these models. Follow the radiator hoses to the engine until you find the water pump, which is near one of the drive axles. The thermostat is bolted to the water pump with two bolts. Drain the cooling system, then using a large pan under to catch any extra coolant when removing the thermostat housing. Carefully clean the surfaces of both the thermostat housing and the water pump. [Check water pump for coolant seepage, which leaves a crusty beige or pink deposit. If so, replace the water pump.] Install a new thermostat and gasket (Or O-ring). Refill the coolant with the same coolant only if it looks clean. I would also test the coolant to see what the PH is, which needs to be about 7.2 PH. (Coolant will turn acid over time, even when it looks okay.) Make sure you put as much coolant back into the system as you removed. Fully warm up the engine, and let it cool down before removing the radiator cap, then check for air in the system, topping up as needed. The radiator needs to be full to the top. Also check the overflow reservoir, which has level marks of Low and High, Never fill over the High mark.

Go to Toyota Nation, Previa Forum. or search for Samay in Seattle, he's the expert

loud bang could of been your battery. have you replaced the battery? any problems since?