Have the suv scanned anyway, check for any "freeze frame data" Could be a bad tranny as well. There is a tech bulliten for low line pressure, could be your problem.
4R44E/4R55E/5R44E/5R55E - LOW LINE PRESSURE AT WOT - DTC P0732, P0733, P1762
TECHNICAL SERVICE BULLETIN
Reference Number(s): 03-22-10, Date of Issue: November 10, 2003
FORD: 1995-2001 EXPLORER; 1995-2002 RANGER; 1996-97 AEROSTAR; 2000-2002 EXPLORER SPORT; 2001-2002 EXPLORER SPORT TRAC MERCURY:1997-2001 MOUNTAINEER
Superceded Bulletin(s): 03-11-9, Date of Issue: June 9, 2003, 02-13-8, Date of Issue: July 8, 2002, 02-08-2, Date of Issue: April 29, 2002 Related Ref Number(s): 02-13-8, 02-8-2, 03-11-9, 03-22-10
NOTE: This article supersedes TSB's 03-11-9, 02-13-8 and 02-08-2 to update the model coverage.
TRANSMISSION - 4R44E - 4R55E - 5R44E - 5R55E - LOW LINE PRESSURE READING AT WIDE OPEN THROTTLE (WOT) - POSSIBLE DIAGNOSTIC TROUBLE CODES P0732, P0733, P1762 - VEHICLES BUILT BEFORE 12/1/2001
Some vehicles built prior to 12/1/2001 may exhibit the following shift and engagement conditions:
Ã No 2nd Gear
Ã No 3rd Gear
Ã No Engine Braking In Manual 1st.
Out of specification pressures controlled by the transmission main control valve body separator plate may be the cause.
Verify the condition, the main control valve body separator plate may need to be updated to the latest level. Refer to the following Service Procedure for details.
CAUTION:A NEW SEPARATOR 7Z490 MUST BE USED WHEN INSTALLING THE SPECIAL SERVICE KIT 7M203 OR ADDITIONAL TRANSMISSION DAMAGE MAY OCCUR. REFER TO THE PARTS APPLICATION CHART IN THIS ARTICLE FOR CORRECT SEPARATOR PLATE PART LISTING.4R44E/4R55E/5R44E/5R55E - LOW LINE PRESSURE AT WOT - DTC P0732, P0733, .
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NOTE: THIS ARTICLE DOES NOT APPLY TO ANY OTHER CONDITIONS OR COMPONENTS THAT MAY CAUSE SIMILAR SYMPTOMS AND IS ONLY WRITTEN TO COVER THESE SPECIFIC CONDITIONS.
NOTE: AN IN-LINE SERVICE FILTER IS NOT REQUIRED TO BE ADDED OR REPLACED FOR THIS TSB.
1. Verify that one or more of the following conditions exist.
Ã Low Line Pressure While In Drive At WOT
Ã No 2nd And/Or No 3rd Gear
Ã No Engine Braking In Manual 1st
Ã DTC P0732, P0733 Or P1762 2. Install Kit (3L5Z-7M203-JA) to update the main control valve body assembly, refer to the installation procedures found in the kit. 3. Reinstall the main control by continuing to follow the installation steps listed in the Workshop Manual, in-vehicle service, main control valve body. 4. After completing the procedure, verify the condition has been corrected. 5. Clear all DTCs.
Thursday, March 5th, 2009 AT 6:25 PM