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Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 46501
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
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I have a 2005 cadillac escalade. Car Shifts from 1st gear to

Customer Question

I have a 2005 cadillac escalade. Car Shifts from 1st gear to third gear no second gear
Submitted: 10 months ago.
Category: Transmissions
Expert:  Chris (aka- Moose) replied 10 months ago.

Welcome, I'm Chris (aka Moose).

Any warning light on?

Does it shift fine past 3rd gear?

Customer: replied 10 months ago.
we went 65 mph no high rev
Customer: replied 10 months ago.
no warning light
Customer: replied 10 months ago.
codes we read were p 0650 and pending code p 0894 and dealer said he had code p 0654
Expert:  Chris (aka- Moose) replied 10 months ago.

Thanks, ***** ***** those codes are related to the transmission. Possible causes for the transmission to skip over 2nd gear are:

  • Faulty isolator valve
  • Faulty 1-2 accumulator
  • 2nd clutch seals or clutch plates damaged.
  • 3-2 downshift valve damaged
  • 4-3 sequence valve damaged
  • 1-2 shift valve stuck or 1-2 solenoid bad
  • 2-3 shift valve stuck or 2-3 solenoid bad

A trans tech would be able to diagnose all these possible causes and likely would be able to address this concern through the pan.

If your confused on what to do now. You have already been charged the full question value. It's now time to compensate the tech that helped you. The only way I can continue to work here and help customers is by getting rated. If your not pleased yet or plan not to rate me. Let me know so I can help more, close the post, or opt out. Please let me know if you are pleased with my help.

Thanks Moose.

Expert:  Chris (aka- Moose) replied 10 months ago.

Hello again Chris here,

I am contacting you because the post has not been closed or rated. We have 7 days to get a post rated before it times out. When a post times out, that means its no longer on my active list (if you reply I never know it.) You have already paid the fees to get this question answered, but it appears your not pleased, or need more help.

Let me help some more. Is there anything else you feel I could offer so you would be pleased with my help. I have the option to call you if that would be better.

Thanks Chris

Customer: replied 10 months ago.
We Replaced the 1-2 accumulator whole assembly because it had broken spring and piston, 1-2 shift solenoid valve, 2-3 solenoid valve, 1-2 shift valve not stuck, 2-3 shift valve not stuck. Could you tell me where the faulty isolator valve is or what else its called, still have to check 3-2 downshift and 4-3 sequence valve. You make a note of 2nd clutch seals or clutch plates damaged where are they.
Customer: replied 10 months ago.
Can you access the 2nd clutch seals or clutch plates from the pan?
Expert:  Chris (aka- Moose) replied 10 months ago.

To access, inspect, repair the 2nd clutch you have to remove the transmission and disassemble it.

https://dl.dropboxusercontent.com/u/90220402/05escalade.pdf