20 Most Recent 1994 Toyota Previa - Page 6 Questions & Answers

i have this exact problem did u find out whats wrong?

And I am sure the car is gutless. There is little that you can do with it if it has died. You might be able to find another one at a scrap dealer and it is not too difficult to do the change over. The cost of a new one will bring tears to your eyes but the 2c engine is bulletproof and will give you thousands of miles of hassle free travelling. The older turbo engines need to be idled for a couple of minutes after a run to let the turbo wind down. If you don't they will run without oil and suffer premature failure.

WHAT INFORMATION DO YOU NEED.

any parts place should have it do you have autozone,pepboys,napa,advance auto just to name a few should have ur parts or they will tell you where to get them

Try 877-800-2727

did you do a maintenance routine check? like air filter and fuel filter...lastly, do an engine compression

Blue smoke in the exhaust usually means oil is leaking into the compression cylinder and is burning with the air/fuel mixture. This would definitely cause hard starting.
As for how it's getting in there, that depends on how the car has been maintained. How many miles are on it.
First thing you should do is check your oil level. Make sure it's full. Keep track of your oil consumption for at least a week. Knowing how much you are using up can give you an indication how it's getting in there.

This could mean worn rings and cylinder walls or bad valve seals. It could also mean a crack in the block. This might shed some light on the cold air problem as well. Especially if your car overheated recently. Regardless what the cause is this is not a week end job. If your not comfortable with the thought of engine parts laying around find a good mechanic.
I really hope this helps and good luck.

you need to find out what the output of the tps should be at normal operating temperature (tps = Throttle position sensor). Most are three wire sensors, one wire is a supply rail usually 12volts or 5volts, the next wire is the output of the sensor back to the vehicle's control unit and the third wire is the reference earth which should always read as zero volts or just above zero ( like 0.2 volt) you need to locate the output wire, the voltage on this wire will change with throttle position so when the throttle is closed ( at idle) this wire will give you a voltage. You loosen the fixing bolts on the sensor and move it very slightly to change this reading to whatever the correct reading should be. On most vehicles here in australia, the tps is set to .9 volts but you need the correct voltage for your vehicle. If you find that the sensor has insufficient adjustment to give the correct reading, replace the sensor. If you find that the supply voltage is incorrect, refer to a wiring diagram to confirm where this wire receives its power from. Trace the wire and check the voltage until you locate the issue. If this wire is fed 5 volts from the vehicle computer, check the voltage AT THE COMPUTER and if it is still low, high or missing, replace the computer. If the voltage is correct at the computer, trace back to the sensor checking the voltage until you locate the issue and repair it. If the vehicle has a Delco Remy computer, have it tested and repaired by a qualified technician ( some delco remy computers had an issue with cheap Japanese electrolytic capacitors) DON'T ATTEMPT this yourself, these computers use multi layer boards and MUST be repaired using special equipment or you will cause catastrophic damage. Contact your local dealership or garage for the correct sensor voltage when the sensor is in the idle position or purchase the manual for the vehicle which should contain these and other voltages along with workshop procedures for locating issues within the engine management. Having a manual is always a good investment and you can sell the manual if you ever sell the vehicle..

1st 48ft-lbf

2nd turn 90 degrees

3rd turn 90 degrees

The thermostat is in a housing where the top radiator hose meets the engine

sounds like your brake air booster is gone you must replace with remanufactured or new one! when booster fails pedel tends to get very hard to press !

need to have it tested but the good news is im looking at a flyer i got from a california parts house that has previa trans used low milage installed for $600 if it turns out yours is bad they can ship you one cheap if you have a mechanic i can give you the info or if not may can help autodoc01 @ live .com happy toyotaing

put a 12 volt test meter on the battery with the engine off and get the reading.
then start the engine and retest the volts it should go up a volt ot two.
if the test readings are the same then the alternator is bad.
thank you
jm

no. have to remove cam sprocket and crank sproket.

I can give you some general sidrections as I do not have a manual for your car. But you are better off getting a repair manual from store or online and follow the removal procedures. Take care!