1994 Mercury Sable Trouble Codes


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Old 04-07-08, 05:37 PM
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1994 Mercury Sable Trouble Codes

I have a 94 Merc. Sable that just recently stopped going into the upper gears. It works well in 1st and Rev. but does not shift up. The trans. is an AXOD-E, which makes me wonder if there would be a code for a fault in the trans. Is there a way of pulling the codes without using a code reader? Any help apreciated.
 
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Old 04-07-08, 06:20 PM
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there probably is a flash code method on that one...no access to info from home tho. i'll take a further look in the am.

a little background on AXOD-E. those early ones were pretty prone to dirty failures and the small particles eventually migrate thru the filter and cause havoc in the valve body. progressive loss of upshifts is a common trend with that type of failure. You could remove the pan and filter and see if you find alot of debris and/or sediment in the...it's a bad sign if you do. there are other causes of no upshift, of course...is your speedo working?
 
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Old 04-08-08, 06:32 AM
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I second carguy's thoughts, but I'm usually a bit less tactful: the transmission in that generation of Taurus/Sable was a piece of crap right from the drawing board. The rate of premature failure was incredably high with failures under 50,000 miles not uncommon. Most of those cars have apparently either gone to the boneyard or have been repaired because we don't tow nearly as many, but five years ago I'll wager we towed at least one Taurus or Sable a week for a dead tranny (or blown head gasket on the 3.8L engine).

Correct me if I'm wrong, carguy, but weren't those early failures a planetary gear problem?
 
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Old 04-08-08, 09:43 AM
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As stated here alreadt those transmissions were junk. Aside from that have you changed the fluid and filter or taken it somewhere to be done. You may need to do this a few times since the converter fluid won't drain. If you have sediment in the pan and filter your transmission is in bad shape and in need of rebuild.
 
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Old 04-08-08, 10:29 AM
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TTG--yes on planet failures...they were usually very messy...and loss of upshift was a normal consequence along the way...you know...right before they had to call you! there are some lube upgrades for the AXODE that are a MUST



Ignition key MUST be cycled "OFF" for 10 seconds prior to the start of any KOEO or KOER self-test. If the key is not cycled off the system will not reset and the next test will not initiate correctly.
Correct results of the quick tests are dependent on the proper operation of related non-EEC-IV components.
Minor deviations from this procedure or the Flow of Diagnosis may cause false codes to be output.
KEY ON ENGINE OFF (KOEO) SELF-TEST PROCEDURE


Start engine and bring to normal operating temperature. If engine will not start or stalls after starting, proceed with next step.
Turn the key "OFF", then wait ten seconds.
Data Link Connector (DLC)





Analog Voltmeter Connection








Activate the self test by grounding the Self-Test Input (STI) connector.
Turn the ignition key "ON".
Key On Engine OFF (KOEO) Diagnostic Trouble Code Format








Record all codes received.
Turn ignition "OFF".
RESULTS, WHERE TO GO NEXT



Record all codes received:
Distinguish between ON DEMAND (hard) codes and CONTINUOUS MEMORY codes. On Demand codes are output first, followed by, a separator pulse, followed by Continuous Memory codes.
Record the order in which they were received.
If a pass code (111) is received for ON DEMAND (hard) codes, proceed to Timing Checks. See: Computers and Control Systems\Testing and Inspection\Reading and Clearing Diagnostic Trouble Codes\Reading Diagnostic Trouble Codes\Base Ignition Timing Check
If any ON DEMAND (hard) codes are received, refer to Diagnostic Trouble Code Charts and Descriptions for appropriate testing procedures. See: Computers and Control Systems\Testing and Inspection\Diagnostic Trouble Code Tests and Associated Procedures
NOTE: ON DEMAND (hard) codes should be diagnosed in the order they were received.



Continuous memory codes recorded in this step will be used for diagnosis after ALL ON DEMAND (hard) codes from BOTH the KOEO and the KOER test have been corrected.
 
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Old 04-09-08, 03:30 PM
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Error codes

Thanks for all your responses, the input is very much apreciated. I was able to pull the codes and I got back a 647 C: Incorrect Gear Ratio, 3rd Gear. When I pulled the pan to change the filter, the fluid was dirty, but not a lot of sediment that I could tell. The car still engages 1st and R really strong, and I'm wondering if taking it to have a complete trans. flush would be a wise investment before scrapping this project. Unless that code is telling me that there is a planetary failure (mechanical I would assume.)
Oh, and yes, the speedo works fine.
 
 

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