Front Shock Absorber Noise, Leaks, Service Suspension Message Displayed on DIC (Replace Shock Absorbers and Coil Springs, If Necessary)
| Subject: | Front Shock Absorber Noise, Leaks, Service Suspension Message Displayed on DIC (Replace Shock Absorbers and Coil Springs, If Necessary) |
| Models: | 2007 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2007 Chevrolet Avalanche, Suburban, Tahoe |
| 2007 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
| with Real Time Damping Suspension Package (RPO Z55) |
This bulletin is being revised to add additional Models. Please discard Corporate Bulletin Number 08-03-08-002A (Section 03 -- Suspension).
Condition
Some customers may comment that a Service Suspension message is displayed in the DIC. In addition, some customers may notice front shock hydraulic leaks and noise when driving over bumps or crests.
Cause
Road events that cause excessive suspension rebound loads (full travel in extension) may cause deformation to the internal solenoid valve housing. This can result in premature loss of contact between the internal electrical terminals. Typically, a Service Suspension Message will be seen on the DIC with trouble codes of open or short circuit for the specific shock absorber. Additional symptoms can be a loss of damping, shock noise or shock oil fluid leak.
In cases where a shock fluid leak is present, the leak may be aggravated by the side load imparted by the front coil spring to the shock sealing system.
Correction
Replace the front shock absorbers. The replacement shock absorbers have a higher strength solenoid valve housing.
Vehicles that exhibit a front shock fluid leak can benefit from the use of side load compensating coil springs. Where appropriate, for 2007 model year vehicles only, spring replacement can be made at the same time when replacing the shock absorber. Refer to Shock Absorber and Spring Assembly Replacement in SI.
Refer to the Parts Information below for applicable RPO usage for the shock absorbers and coil springs.
Parts Information
For additional part information and usage , refer to Group 7.345 for shock absorbers and Group 7.412 for springs of the appropriate parts catalog.
Part Number | Description | RPO Code / Usage |
|---|---|---|
25845437 | Absorber, ASM-FRT SHK | 6BK, 6BL, 6BM, 6BN, 6LK, 6LN, 6LP, 6LR, 7BK, 7BL, 7BM, 7BN, 7LK, 7LN, 7LP, 7LR |
25845438 | Absorber, ASM-FRT SHK | 6BU, 6BW, 6BX, 6ZF, 6ZH, 6ZJ, 7BU, 7BW, 7BX, 7ZF, 7ZH, 7ZJ |
25845439 | Absorber, ASM-FRT SHK | 6BP, 6BY, 6BZ, 6CA, 6ZL, 6ZM, 7BP, 7BY, 7BZ, 7CA, 7ZL, 7ZM |
25845440 | Absorber, ASM-FRT SHK | 6DB, 6DC, 6DD, 6DT, 6DU, 6DW, 6DX, 7DB, 7DC, 7DD, 7DT, 7DU, 7DW, 7DX |
25845441 | Absorber, ASM-FRT SHK | 6CT, 6CY, 6CZ, 6DN, 6DP, 6DR, 7CT, 7CY, 7CZ, 7DN, 7DP, 7DR |
25845442 | Absorber, ASM-FRT SHK | 6CU, 6CW, 6CX, 6DF, 7CU, 7CW, 7CX, 7DF |
25845443 | Absorber, ASM-FRT SHK | 6DY, 6DZ, 6FA, 6FB, 6KU, 6K6, 6KZ, 6LA, 7DY, 7DZ, 7FA, 7FB, 7KU, 7KY, 7KZ, 7LA |
25845444 | Absorber, ASM-FRT SHK | 6BR, 6BS, 6BT, 6CC, 6CH, 6CJ, 6JA, 6JB, 6JC, 6JD, 6JF, 7BR, 7BS, 7BT, 7CC, 7CH, 7CJ, 7JA, 7JB, 7JC, 7JD, 7JF |
25845445 | Absorber, ASM-FRT SHK | 6JH, 6JK, 6JL, 7JH, 7JK, 7JL |
25845446 | Absorber, ASM-FRT SHK | 6AC, 6AD, 6CP, 6CR, 6CS, 6JM, 6JN, 6JP, 7AC, 7AD, 7CP, 7CR, 7CS, 7JM 7JN, 7JP |
25845447 | Absorber, ASM-FRT SHK | 6AP, 6AR, 6DH, 6JR, 6JS, 6JT, 7AP, 7AR, 7DH, 7JR, 7JS, 7JT |
25909345 (Old Spring P/N 15815636) | Spring, Frt (side load compensated) | 6AA, 6AD, 6AM, 6AR, 6A8, 6BN, 6BX, 6CA, 6CC, 6CJ, 6CN, 6CS, 6DC, 6DH, 6DL, 6D6, 6D7, 6F2, 6F7, 6G3, 6H1, 6H5, 6JD, 6JL, 6JP, 6LR, 6JS, 6ZJ, 6ZM, 7AA, 7AD, 7AM, 7AR, 7A8, 7BN, 7BX, 7CA, 7CC, 7CJ, 7CN, 7CS, 7DC, 7DH, 7D6, 7D7, 7F2, 7F7, 7G3, 7H1, 7H5, 7JD, 7JL, 7JP, 7JS, 7LR, 7ZJ, 7ZM |
25909346 (Old Spring P/N 15815628) | Spring, Frt (side load compensated) | 6B1, 6DN, 6KD, 7B1, 7DN, 7KD |
25909347 (Old Spring P/N 15815629) | Spring, Frt (side load compensated) | 6DP, 6H2, 6KJ, 7DP, 7H2, 7KJ |
25909348 (Old Spring P/N 15815630) | Spring, Frt (side load compensated) | 6B4, 6DR, 6KK, 7B4, 7DR, 7KK |
25909349 (Old Spring P/N 15815631) | Spring, Frt (side load compensated) | 6B5, 6CT, 6KL, 7B5, 7CT, 7KL |
25909350 (Old Spring P/N 15815633) | Spring, Frt (side load compensated) | 6A1, 6BK, 6BR, 6CB, 6D3, 6LK, 7A1, 7BK, 7BR, 7CB, 7D3, 7LK |
25909351 (Old Spring P/N 15815634) | Spring, Frt (side load compensated) | 6AB, 6BL, 6BP, 6BS, 6BU, 6BY, 6CD, 6CF, 6CK, 6CP, 6D4, 6D9, 6F3, 6F9, 6FQ, 6G4, 6JB, 6JK, 6JM, 6LN, 6ZF, 7AB, 7BL, 7BP, 7BS, 7BU, 7BY, 7CD, 7CF, 7CK, 7CP, 7D4, 7D9, 7F3, 7F9, 7FQ, 7G4, 7JB, 7JK, 7JM, 7LN, 7ZF |
25909352 (Old Spring P/N 15815635) | Spring, Frt (side load compensated) | 6AC, 6AK, 6AP, 6A2, 6A5, 6A7, 6BM, 6BT, 6BW, 6BZ, 6CH, 6CL, 6CM, 6CR, 6DB, 6DF, 6DK, 6D5, 6F1, 6F4, 6F6, 6H3, 6JC, 6JK, 6JN, 6JR, 6LP, 6ZH, 6ZL, 7AC, 7AK, 7AP, 7A2, 7A5, 7A7, 7BM, 7BT, 7BW, 7BZ, 7CH, 7CL, 7CM, 7CR, 7DB, 7DF, 7DK, 7D5, 7F1, 7F4, 7F6, 7H3, 7JC, 7JK, 7JN, 7JR, 7LP, 7ZH, 7ZL |
25909353 (Old Spring P/N 15911936) | Spring, Frt (side load compensated) | 6AN, 6AS, 6AW, 6A9, 6DD, 6DJ, 6DM, 6D8, 6F8, 6JF, 6JT, 7AS, 7AN, 7AW, 7A9, 7DD, 7DJ, 7DM, 7D8, 7F8, 7JF, 7JT |
25909354 (Old Spring P/N 15911940) | Spring, Frt (side load compensated) | 6C3, 6DT, 6DY, 6H4, 6KU, 6LB, 7C3, 7DT, 7DY, 7H4, 7KU, 7LB |
25909355 (Old Spring P/N 15911941) | Spring, Frt (side load compensated) | 6B6, 6B9, 6CU, 6CY, 6C4, 6C9, 6KM, 6KR, 6KY, 6LF, 7B6, 7B9, 7CU, 7CY, 7C4, 7C9, 7KM, 7KR, 7KY, 7LF |
25909356 (Old Spring P/N 15911942) | Spring, Frt (side load compensated) | 6C1, 6C6, 6CW, 6CZ, 6D1, 6DW, 6FA, 6G5, 6KN, 6KS, 6KZ, 6LH, 7C1, 7C6, 7CW, 7CZ, 7D1, 7DW, 7FA, 7G5, 7KN, 7KS, 7KZ, 7LH |
25909357 (Old Spring P/N 15911943) | Spring, Frt (side load compensated) | 6B8, 6CX, 6D2, 6DS, 6DX, 6FB, 6G7, 6G9, 6KP, 6KT, 6LA, 6LJ, 7B8, 7CX, 7D2, 7DS, 7DX, 7FB, 7G7, 7G9, 7KP, 7KT, 7LA, 7LJ |
Warranty Information
Important: Select the appropriate labor operation for the repair performed.
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
E3800 | Shock Absorber, Front-Right - Replace | Use Published Labor Operation Time |
E3801 | Shock Absorber, Front-Left - Replace | |
E3807 | Shock Absorber, Front-Both - Replace | |
E3020 | Springs, Front Coil-Right - Replace | |
E3021 | Springs, Front Coil-Left - Replace | |
E3027 | Springs, Front Coil-Both - Replace |
