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I have a 1994 toyota paseo, with automatic transmission with overdrive. When i take it out on the highway, it takes some time to go into overdrive. I would be doing about 60 mph with the rpm up high. It takes sometime to go up to overdrive, and then the rpm would come back down low. At this time the car would be running normal at the speed of 65 mph at a low rpm. Also, at around the same time i have no heat, just cold air blowing out of the vents.The temp. gauge on the dashboard has a very low reading, once in a while the temp. will come up, then go back down to the lowest reading on the gauge. Does this problem have to do with my overdrive problem?
Thank you ccn7 for getting back to me so quickly! I always like to bump heads with someone before I spend any cash for repairs on myself, or any of my customers. ( I have a security alarm and computer repair business).
To answer your questions, I don't get any heat when this car is standing or when driving for 30 minutes. I checked the coolent when the car is cold. It is full to the top.The climate here ( HAMDEN,CT.) U.S.A. is winter. The temp.is about average 25 degrees. The trans. fluid is red in color, and does not have a burnt smell to it. The only thing I notice with the trans. fluid that I checked when the car was cold, is that when I pulled out the trans. stick, the fluid was at the hot side level . I did this when the car was cold and not running. I think I'm to check it when the car is running and at normal heated temp. I'm not sure if I did this correctly. As far as I can remember, I have never seen the service engine light come on the dashboard.
THANK YOU, CCN7
RON GERSHMAN
HAMDEN, CT. U.S.A.
[email protected]Thank you ccn7 for getting back to me so quickly! I always like to bump heads with someone before I spend any cash for repairs on myself, or any of my customers. ( I have a security alarm and computer repair business).
To answer your questions, I don't get any heat when this car is standing or when driving for 30 minutes. I checked the coolent when the car is cold. It is full to the top.The climate here ( HAMDEN,CT.) U.S.A. is winter. The temp.is about average 25 degrees. The trans. fluid is red in color, and does not have a burnt smell to it. The only thing I notice with the trans. fluid that I checked when the car was cold, is that when I pulled out the trans. stick, the fluid was at the hot side level . I did this when the car was cold and not running. I think I'm to check it when the car is running and at normal heated temp. I'm not sure if I did this correctly. As far as I can remember, I have never seen the service engine light come on the dashboard.
Does it loose heat when you set still? is it full of coolent? whats the climent like were you at? is trans. low on fluid?when was the last time trans. was serviced? i know on most cars and trucks low fluid or old fluid can cause it to do what your saying, and also cold weather. some cars have a temp.sensor that won't let it shift into overdrive until car gets to a certain temp. with your temp. guage fluctuating the two could be related. has your service engine light ever come on and then went out, when it did this? if it ever has, have it scaned and see what codes show up. it might be that temp sensor i talked about. well thats the best i can do for you RON hope it helps or at least point you in the right direction to cure your problem. OLD SCHOOL.
well you said it does not thro heat standing still, tells me its thermostat, most likely stuck open, letting coolent flow to fast, witch means it takes longer to thro heat or maybe not at all, its better than stuck closed, witch it would run hot. install new thermostat.from what you say about trans. fluid sounds about right, its always better to run fluid a little under full than over full. to much fluid it will thro it out and then you got a mess. i am kinda taking a guess here but i think if you chg. the thermostat the trans will shift right. i'am no expert here, but i still would have it scaned the computer stores codes even if you don't hppen to see the chk. engine light come on. to bad your so far away my computer could use a tuneup, i live in northwest ohio. good luck hope everything works out for ya. OLD.SCHOOL.well you said it does not thro heat standing still, tells me its thermostat, most likely stuck open, letting coolent flow to fast, witch means it takes longer to thro heat or maybe not at all, its better than stuck closed, witch it would run hot. install new thermostat.from what you say about trans. fluid sounds about right, its always better to run fluid a little under full than over full. to much fluid it will thro it out and then you got a mess. i am kinda taking a guess here but i think if you chg. the thermostat the trans will shift right. i'am no expert here, but i still would have it scaned the computer stores codes even if you don't hppen to see the chk. engine light come on. to bad your so far away my computer could use a tuneup, i live in northwest ohio. good luck hope everything works out for ya. OLD.SCHOOL.
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Over Drive..... Generally speaking, overdrive (OD) is the highest gear in the transmission. Overdrive allows the engine to operate at a lower rpm for a given road speed. This allows the vehicle to achieve better fuel efficiency, and often quieter operation on the highway. When it is switched on, an automatic transmission can shift into overdrive mode after a certain speed is reached (usually 70+ km/h [43+ mph] depending on the load). When it is off, the automatic transmission shifting is limited to the lower gears. For an automatic transmission, it is almost always best to select overdrive and allow the transmission to control engagement of the overdrive. (It may be necessary to switch it off if the vehicle is being operated in a mountainous area or when towing a trailer.) With a manual transmission, overdrive should usually be selected when the average speed is above 70 km/h (approx. 43 mph).
TURN OFF RADIO SO YOU WONT LOSE CODE.DISCONNECT NEGATIVE BATTERY CABLE.THEN REMOVE POSITIVE BATTERY CABLE.AT BATTERY THEN REMOVE POSITIVE BATTERY AT STARTER.YOU WILL HAVE TO REMOVE AIR CLEANER ASSEMBLY TO GAIN ACCESS TO STARTER.IF YOU HAVE AUTOMATIC TRANSMISSION YOU WILL HAVE TO DISCONNECT THE THROTTLE LINKAGE CONNECTING ROD AND TRANSMISSION OIL FILLER TUBE.
According to Haynes Auto Repair Manual, section on automatic transmissions, the 1994 Towncar has the AODE transmission
Baumann Electronic Controls website
URL: http://www.becontrols.com/tech/ch1alphabet.htm
has following:
The Automatic Overdrive (AOD) transmission was introduced in 1980 as Ford's first four-speed automatic overdrive transmission.
The AOD-E transmission is essentially a beefed-up electronically-controlled version of the AOD.
If this doesn't answer your question, you might troll around the website.
the overdrive button on your automatic transmission is for cruising on the highway basically like having another gear for better economy careful not to use it when your not on the highway because lugging the car in overdrive when its not needed will cause higher fuel consumption other than that you should have no problems just get out on the highway and push and away you go
I would start with replacing your tranny fluid. black is no good. your tranny should hold about 7 qts of fluid. The tranny fluid runs through your radiator to help keep it cool. If your thermostat is stuck closed your eng coolant won't circulate and the coolant will get hotter inside your radiator. thus making your tranny fluid hotter and breaking it down. After time it will turn black from getting too hot. Let your car warm up to normal operating temperture then grab your upper radiator hose. It should be very warm. If not your thermostat is stuck closed.
Use it only on highways and you should wait until you are in 4th gear to turn it on. If used in a moutain area, it will put more strain on the transmission so make sure it is not on while going up hill.
Lee
Your light for the overdrive is probably flashing from the transmission shifting in and out of overdrive? But to your power problem,It could be your catayliticconvertor. You should have a check engine light on with a fault code associated with it.Manuf are all different but it should say, Cat efficiency below minimum which comes from the rear oxygen sensor. The only way for you to check would be to drop the exhaust forward of the cat and then drive the car around the block to see if the power returns. Sometimes if you take a rubber hammer and hit the Cat you can hear the broken material inside jumping up and down. One thing I would check first before replacing it is by govt standard it is warrantied up to 80k. call the dealer and run your VIN number they can tell you if it is still under warranty. Even if the car is not.Hope that helps..Mark
Thank you ccn7 for getting back to me so quickly! I always like to bump heads with someone before I spend any cash for repairs on myself, or any of my customers. ( I have a security alarm and computer repair business).
To answer your questions, I don't get any heat when this car is standing or when driving for 30 minutes. I checked the coolent when the car is cold. It is full to the top.The climate here ( HAMDEN,CT.) U.S.A. is winter. The temp.is about average 25 degrees. The trans. fluid is red in color, and does not have a burnt smell to it. The only thing I notice with the trans. fluid that I checked when the car was cold, is that when I pulled out the trans. stick, the fluid was at the hot side level . I did this when the car was cold and not running. I think I'm to check it when the car is running and at normal heated temp. I'm not sure if I did this correctly. As far as I can remember, I have never seen the service engine light come on the dashboard.
THANK YOU, CCN7
RON GERSHMAN
HAMDEN, CT. U.S.A.
[email protected]
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