Last post on Nov 07, 2013 at 9:29 PM
You are in the Mazda 626
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#17 of 80 trans range switch
May 08, 2008 (9:15 am)
from the sounds of it i'm having the same problem as a few others. 2000 mazda 626 4 cyl. auto transmission. my transmission will shift out of overdrive and back into over drive rather hard when i'm maintaining speed of about 50-60 miles an hour. if i take over drive off and slow down to about 40-45 the problem goes away for a little bit but it'll start doing it again after driving around for a while. the problem doesnt happen untill the car gets warm and has been driven for about 20-30 min. the check engine light came on and i had them read the code and it came back trans range switch output high.i went to the dealer ship and paid and ordered the transmission range switch so i'm hoping that it'll fix it. does any one have any advice or helpfull tips for installing that switch. i'm a back yard mechanic and don't have a lot of fancy tools but it's my only car and i need this problem fixed. please let me know if you guys can think of anything helpful to me. thank you guys
#18 of 80 Re: trans range switch [bkristeller]
May 08, 2008 (1:00 pm)
One thing to consider is, if your car doesn't have an auxiliary transmission cooler, add one. It's about $200 installed by a Mazda dealer (maybe less if elsewhere?). I had one installed on my 2000 626 4AT when I bought it over 2 years ago, on the dealer's recommendation. The car shifted poorly and the check engine light came on. Since the cooler was installed I've had zero problems with the tranny.
#19 of 80 hesitates to go into drive
Jul 18, 2008 (6:37 pm)
Ok here is my problem i have a 1995 626 lx with a 2.0 and a cd4e tranny when i start the car or anytime for that matter and put it into drive with the overdrive on it does not go into drive with out giving it some throttle if i turn the overdrive off and put it into drive it will jump into drive after a few seconds of waiting if i am driving down the road going about 20 and turn the overdrive on it jumps out of gear i turn the od back off and it goes back into gear anyone have any comments to make as to what it may be the car has 172000km on it and no after market tranny cooler
Jul 18, 2008 (6:41 pm)
Forgot to add if i have the overdrive on and force it to drive by giving it gas the overdrive off light will start blinking and if i am driving down the road with the overdrive on and come to a stop it will jump out of gear when i get to about 5 km/hour
my wife also added the radiator fan seems to be coming on alot more than it used to
#21 of 80 Re: 97 626 transmission problem [eharing]
Sep 12, 2008 (8:24 am)
One quick question: Does the O/D light Flash when on extended highway trips?
If it does, you may have a "known" Mazda Service Issue. My 1998, Mazda 626 LX 4 cyl 2.0 had a very similar issue that happened only after driving at highway speeds for about an 70 minutes.
I spoke with a guy who rebuilds these transmissions. He said that when the O/D light "flashes", it is caused by a malfunction within the computer or a minor defect in the transmission.
When the light goes on, it enters a Fail-Safe mode… (the EPC solenoid opens up and brings line pressure up to 'max') ... the only catch is it raises the fluid pressure well beyond normal specs (it goes from 100 to 400 PSI).
It is at this time where you get your major failures. (Mazda switched the Automatic 626 to OBD II around the 1996 model year, so if you have a '96 or later, you'll need a full-fledged OBD II-compatible scan tool.)
A Mazda Technical Service Bulletin exists for some 1999-2001 models. TSB 05-005/02 deals with one specific circumstance: "After extended highway driving, the O/D off light is blinking and code P1783 is set (excessive ATF temperature). Occasionally there will be overflow through the dipstick tube and harsh shifting. Mazda's recommended fix is to replace the radiator and to install an auxiliary cooler for the transmission."
It sure can not hurt to tell your mechanic to examine the Mazda Technical Service Bulletin 05-005/02. Keep in mind that once your car goes in safe mode, your transmission fluid will get burnt up real fast. A transmission cooler cost about 40-50 bucks, and will extend the life of the poorly designed Mazda/Ford transmission. You will need to replace your transmission fluid during the install (if burnt) and read the directions on the cooler to adapt for any additional fluid.
Search on the internet for a Hayden Transmission Cooler, either Hayden 404 or Hayden 679... I prefer Hayden 404 because it has bigger piping than the 679 which doesn't restrict tranny fluid flow (Some use B&M Super Coolers).
Some people also recommend going with a synthetic transmission fluid (Supertech 2000 synthetic fluid for cheaper alternative).
Some people have also claimed that by using Honda's transmission fluid (Dexron I instead of Mazda's Dexron III). The thicker Honda Fluid w/ Honda's special additives have caused a rebirth to their Mazda transmissions.
You can also consider installing a Tranny Temp Gauge so that you can see the difference the cooler makes (and know when to stop prior to an transmission overheat.)
I would recommend printing out this and showing it to a trusted mechanic.
Sep 12, 2008 (10:25 pm)
I have a 2002 Mazda 626 been driving it a year the car runs great,but the other day the car started jerking felt like the transmission.The Overdrive light comes on evevery time it jerks could someone please help me.
#23 of 80 99 mazda 626 auto trans. trouble
Sep 20, 2008 (6:26 am)
it was suggested that i check for ablown fuse in my 99 mazda 626 w/ auto trans. the car suddenly quit shifting into gear and a check of the fluid reveals it is up to level and not burned. when you start the engine, the fluid level drops, indicating that the pump is functioning. My questions are 1. if there is a blown fuse, where is it located? 2. if not a blown fuse, where would the module be located that affects shifting?
#25 of 80 mazda 626 - plz help
Sep 24, 2008 (5:37 am)
I have a 2000 mazda 626 that starts just fine but when put into any gear (even neutral) will not move at all, wont roll, wont go anywhere. Any ideas what it might be? Thanks! Marsha
#26 of 80 Re: mazda 626 - plz help [mkmvette]
Sep 24, 2008 (6:50 am)
My daughter has a 99 626 automatic and it suddenly quit moving when you shift it into any posistion. In this case, it turned out to be simple. The transmission shift cable came loose at the transmission. It appeared to have lost some sort of retainer that attaches the cable to the shift lever on the transmission. It was a cheap and easy fix. Good luck