Question about 1993 Toyota Camry V6

3 Answers

Hot weather auto transmission shifting problem

Hi: My '93 Camry with 98,000 miles suddenly started shifting erratically during these hot summer days with temps in the 90's. It still runs but does not shift properly. In the evenings after sunset, it runs fine and even during the day if I turn off the car and wait 10 mins sometimes it will be OK. The second and possibly related problem is that in the heat of the day, the front brakes sometimes lock up erratically and are fine in the evening. Any help would be greatly appreciated - Many Thanks.

Posted by on

  • 1 more comment 
  • wizecards Aug 17, 2008

    Thanks for the feedback. A couple of questions come to mind. Is the throttle position sensor fairly accessible and relatively easy for a mechanic to test/replace or is labor intensive and costly?



    Also is it possibe for car owners to obtain a code reader and run their own tests or does it require complex expensive equipment? Is the car computer fairly accessible?



    Finally, several people have suggested that my transmission problem might be related to the transmiision fluid and/or filter that could need replacing - any thoughts?



    Many thanks

  • wizecards Aug 19, 2008

    Another problem that I have with my '93 4 door Camry V6 is that the automatic door locks for the front doors no longer work, although the rear doors are locking fine when I push the master door lock button. The front locks move slightly but don't seem to have enough power to actually lock? Any suggestions appreciated.

  • wizecards Aug 19, 2008

    The last comment from India makes no sense at all and does not address my question. The car never stops and doing routine maintenance as suggested will obviously not fix the door locks!

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 623 Answers

Taking it to a mechanic is your best option

good luck

Posted on Aug 19, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 638 Answers

Servicing is needed to your car as everything works properly.but stops only sometimes.do oiling, servicing,and powerful hard cleaning to it.it will be ok.

Posted on Aug 19, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toyota Master
  • 19,396 Answers

Often this kind of problem it is caused from faulty throttle position sensor, you find out by connecting a code reader to your car computer.
throttle position sensor tells to your transmission control module how you are using the throttle, so that the car automatic transmission can shift to right gear, when this is faulty often you have transmission faults related to engine rpms and temperature, this can explain a trans problem happening only when engine is hot.
In some case it is not the sensor, but the computer module controlling transmission that is faulty.
To find out cause for the problem you need to connect a code reader to transmission module and to main computer module (ECU).
The code reader will return fault codes that allow to locate the problem. this kind of job can be done at any qualified garage.

Posted on Aug 16, 2008

  • 3 more comments 
  • Ginko
    Ginko Aug 16, 2008

    The brake problem is something that I have never seen before, the only part on brakes that can take decisions on his own it is the ABS module, but I cannot understand how ABS can lock up brakes in this way.
    You should be able to understand all computer related problems by scanning car computer with a code reader, this operation can be performed at any good garage.

    Regards


  • Ginko
    Ginko Aug 17, 2008

    The TPS is usually placed behind throttle pedal, or inside the engine, depending on the model. A basic code reader (scanner only , no check on fiel volume/pressure and engine performance) can be purchased at a good car part shop for about $250.
    If you want to DIY, ar at least to do the diagnostic, depending on what the fault is, you will need a service manual for your vehicle, Try the Haynes manual,.

  • Ginko
    Ginko Aug 17, 2008

    Transmission fluid check is also a basic maintenance that should be performed whenever you have problems with trans, even if from description it does not look as a problem with transmission fluid. Follow instructions on site below:

    How To Check Automatic Transmission Fluid



  • Ginko
    Ginko Aug 20, 2008

    When the automatic door locks for the front doors does not work it means that wiring for dor looks are broken, either for a bad connector or because of some cable severed by usage. Bad door lock cablature sometimes can give you troubles with the anti theft system.

  • Ginko
    Ginko Aug 20, 2008

    First ensure that door lock fuse is fine , and that it is not just a fuse problem.
    To fix door lock wiring problems usually you need to remove door panels and follow and test wiring from fuse box to door lock, and from fuse box (on the other way) to control module.
    If wirings are OK, then it is the control module.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1993 Suburban accelaration


Get another advice,Your make model and year some especially the 4X4 suffer from erratic shifts,low power,late shift and early shif and has been traced to the TCM (transmission control module), and does not set a code, if the mechanic changed the timing he advance the timing for power,but as you said got worse,So the powertrain management would set a DTC (check engine light),The transmission need to be closely look at,

Aug 14, 2012 | 1993 GMC Suburban

1 Answer

Transmission shifts erratically


make sure the fluids full, start it then shut off,and immediatly pull the stick as the engine stops. and is the speedo working constant when hot? could be a speedo senor too

Aug 24, 2009 | 1992 Honda Accord

1 Answer

Hard to start in hot weather


Start looking at temperature sensors and maybe even the thermostat.

Aug 21, 2009 | 1992 Honda Accord

1 Answer

1988 560SL - On very hot days, and/or when engine temp exceeds 80 degrees Cent, Shifting from 2nd to 3rd gear is erratic. Often won't auto shift but can be coaxed to shift by accelerating (about 3000+...


Vacuum modulator on side of transmission and/or the line connected to it my have a leak to begin with. After that try replacing the pistons on the side as they are inexpensive in comparison to a transmission rebuild. If you do go with a rebuild try buymbparts.com or autohausaz.com for rebuild kits.

Aug 19, 2009 | Mercedes-Benz 560-Series Cars & Trucks

2 Answers

When and if do I need to change my transmission fluid?


yes it does need too be change,if auto matic ,especially, change the fluid and the filter, too ensure proper shifting and so it doesnt burn up your transmission,check your manual for exact mileage on service intervals

May 11, 2009 | 2004 Toyota Camry

1 Answer

Transmission shifts erratically in hot weather


replace the fluid in the transmission with the new DEXRON 6 fluid, it in many cases this new synthetic fluid solves this kind of problem, also replace the fluid filter while u are at it.

Mar 27, 2009 | 1992 Chevrolet Cavalier

1 Answer

1994 toyota camry get difficult to start during cold weather


hi you will find that the cold start injector is not working it is found near the throttle bodyand injects fuel to start when cold like aq choke on older cars . it may need replacing i suspect that it is either blocked or just worn out they are not expensive

Mar 05, 2009 | 1994 Toyota Camry

1 Answer

1994 Honda Civic has a difficult time starting during hot weather


the main relay may need to be replace. is the car hot inside on a hot day , and when you air out the car to cool inside temperture, it starts.

Dec 14, 2008 | 1994 Honda Civic

1 Answer

Rough, chugging when driving and conking out


Could also be a faulty mass air flow meter, or throttle position sensor. It's hard to tell, you need to take it to a shop to be properly diagnosed.

Sep 05, 2008 | 1995 Nissan Altima

1 Answer

1999 Toyota Camry Idle Problems on Hot days


Clean the IAC. Disconnect throttle body air hose and you will see a hole on the bottom of the throttle body just before the butterfly valve. Spray throttle body cleaner down the IAC hole and then let it soak about 1/2 hour. Reconnect hose and run engine about a minute and then repeat this process 2 or more times. Toyota engines from 1997-2005 commonly have the IAC get cruded up with carbon as early as 35,000 miles. This is a sImple and cheap repair that many repair shops don't want you to know.

Jun 25, 2008 | 1999 Toyota Camry

Not finding what you are looking for?
1993 Toyota Camry V6 Logo

554 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...