keep throwing p0872
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Senior Member
Joined: Jul 2006
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From: Farmington, MO
keep throwing p0872
I keep throwing code p0782. Tranny was recently rebuilt. I replaced the solenoid pack, but I still get the code. It normally throws it when i do anything above a half throttle take off. shifting seems 100% normal, maybe just a LITTLE sloppy going into 3rd at lightning-half throttle, but at WOT it nails 3rd just like it should
Last edited by built54; Feb 27, 2009 at 08:28 AM.
Senior Member
Joined: Nov 2002
Posts: 1,490
Likes: 18
From: Indianapolis, IN
There is a TSB for this.
TSB 99-18-5
TRANSMISSION CONTROL INDICATOR LAMP (TCIL) - TCIL ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE (DTC) P0782 STORED IN MEMORY - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998 AND WITH 4R70W TRANSMISSION
TRANSMISSION - 4R70W - DELAYED OR NO 2-3 UPSHIFT - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998
FORD: 1997-1999 CROWN VICTORIA, MUSTANG, ECONOLINE, EXPEDITION, EXPLORER, F-150, F-250 LD
LINCOLN: 1997-1998 MARK VIII
1997-1999 TOWN CAR
MERCURY: 1997-1999 GRAND MARQUIS, MOUNTAINEER
This TSB article is being republished in its entirety to revise the Service Procedure.
ISSUE:
A perceived 2-3 delayed upshift, primarily when the transmission is cold, may be evident on some vehicles. The Powertrain Control Module (PCM) strategy is designed to delay shifts in some vehicles when Transmission Fluid Temperature (TFT) is below approximately 21°C (70°F) for faster heater warmup. The 2-3 shift may be delayed approximately 14-24 km/h (9-15 mph) when compared to the shift speed charts listed in the appropriate Service or Workshop Manual. A leaking 2-3 accumulator may cause Diagnostic Trouble Code (DTC) P0782.
ACTION:
Verify if delayed upshift is normal cold shift scheduling or a possible leak past the large diameter 2-3 accumulator seal. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
Using New Generation Star (NGS) Tester, perform all self tests and record DTCs.
Monitor rpm, and gear command Parameter Identification Displays (PIDs) with the NGS Tester during the 2-3 shift.
If engine rpm decreases within 1-2 seconds after the gear command has changed on the NGS Tester, then vehicle has upshifted properly and no repair is necessary. If engine rpm does not drop within 1-2 seconds, continue to Step 4.
If engine rpm does not drop when the PCM commands third gear, then replace the 2-3 accumulator piston using the revised Accumulator Piston (F7AZ-7H292-AB). Refer to the appropriate Service or Workshop Manual for replacement procedure.
PART NUMBER PART NAME
F7AZ-7H292-AB Accumulator Piston
OTHER APPLICABLE ARTICLES:
NONE
SUPERSEDES:
99-1-3
WARRANTY STATUS:
Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
991805A Replace Accumulator Piston Per Service Procedure (Includes Diagnosis) 1.8 Hrs.
991805B Diagnosis Only (Do Not Use With Operation A) 0.8 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
7H292 42
OASIS CODES:
501000, 504000
TSB 99-18-5
TRANSMISSION CONTROL INDICATOR LAMP (TCIL) - TCIL ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE (DTC) P0782 STORED IN MEMORY - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998 AND WITH 4R70W TRANSMISSION
TRANSMISSION - 4R70W - DELAYED OR NO 2-3 UPSHIFT - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998
FORD: 1997-1999 CROWN VICTORIA, MUSTANG, ECONOLINE, EXPEDITION, EXPLORER, F-150, F-250 LD
LINCOLN: 1997-1998 MARK VIII
1997-1999 TOWN CAR
MERCURY: 1997-1999 GRAND MARQUIS, MOUNTAINEER
This TSB article is being republished in its entirety to revise the Service Procedure.
ISSUE:
A perceived 2-3 delayed upshift, primarily when the transmission is cold, may be evident on some vehicles. The Powertrain Control Module (PCM) strategy is designed to delay shifts in some vehicles when Transmission Fluid Temperature (TFT) is below approximately 21°C (70°F) for faster heater warmup. The 2-3 shift may be delayed approximately 14-24 km/h (9-15 mph) when compared to the shift speed charts listed in the appropriate Service or Workshop Manual. A leaking 2-3 accumulator may cause Diagnostic Trouble Code (DTC) P0782.
ACTION:
Verify if delayed upshift is normal cold shift scheduling or a possible leak past the large diameter 2-3 accumulator seal. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
Using New Generation Star (NGS) Tester, perform all self tests and record DTCs.
Monitor rpm, and gear command Parameter Identification Displays (PIDs) with the NGS Tester during the 2-3 shift.
If engine rpm decreases within 1-2 seconds after the gear command has changed on the NGS Tester, then vehicle has upshifted properly and no repair is necessary. If engine rpm does not drop within 1-2 seconds, continue to Step 4.
If engine rpm does not drop when the PCM commands third gear, then replace the 2-3 accumulator piston using the revised Accumulator Piston (F7AZ-7H292-AB). Refer to the appropriate Service or Workshop Manual for replacement procedure.
PART NUMBER PART NAME
F7AZ-7H292-AB Accumulator Piston
OTHER APPLICABLE ARTICLES:
NONE
SUPERSEDES:
99-1-3
WARRANTY STATUS:
Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
991805A Replace Accumulator Piston Per Service Procedure (Includes Diagnosis) 1.8 Hrs.
991805B Diagnosis Only (Do Not Use With Operation A) 0.8 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
7H292 42
OASIS CODES:
501000, 504000
