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  #1  
Old 02-26-2008, 05:00 PM
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Join Date: Sep 2002
Location: San Diego, CA
Posts: 64
1994 e320 w124 code 26

She threw a #26 the other day. I reset and it has yet to come back. I've since replaced the neutral saftey switch, not sure if that was the culprut?

I've searched and discovered that it has to deal with an upshift or something? what does that exactly mean?

Thanks,

John

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  #2  
Old 02-26-2008, 05:06 PM
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Join Date: Aug 1999
Location: Florida / N.H.
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Shift delay fault is that code.

Most likely a bad vac element at the transmission.
There is a green vac line at the delay valve behind the booster..see if that vac line holds a vac with a hand pump.
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Old 02-26-2008, 05:08 PM
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Will check it tonight. If it does not, then what's the solution?

Thanks again for the quick response.
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Old 02-26-2008, 05:16 PM
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If it does not hold vac, then there is a vac leak between the Switch-over-valve and the shift element. It could be as simple as a bad/broken rubber vac line down at the element, but most are a ruptured element.
Or if it does hold vac., then it is possible the SOV is not getting an electrical demand sig from ECU or the SOV is bad.
A quick trick for that is to take the in/out vac hoses off the SOV and put them together...this eliminates all the ECU commands and SOV as possibles and gives direct engine vac to the delay shift element...you then take the car around the block..it should stay in 2nd/shift delay mode b/c you are direct feeding the element w/o engine mangement or SOV control.. if NO , then the shift delay holding element is not working.[ providing you know you have engine vac going there]

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