GM Service Manual Online
For 1990-2009 cars only

WATER IN A.I.R. PUMP/AIR CLEANER ASSY.(MOUNT CLAMP)

SUBJECT: WATER IN A.I.R. PUMP AIR CLEANER ASSEMBLY

MODELS: 1985-89 P3 MOTORHOME CHASSIS (MHC) WITH LE8 (7.4L) ENGINE (VIN CODE W)

Some 1985-89 P3 motorhome chassis equipped with LE8 (7.4L) carbureted engines may experience a condition where rain water or water being splashed from the road surface becomes trapped inside the A.I.R. pump air cleaner assembly.

If this condition is encountered it can be corrected by replacing the original air cleaner mounting clamp with a newly released service mounting clamp part # 15654344 (Figure 1). The original design mounting clamp and hose routing is shown in Figure 2.

When installing this new service clamp it will be necessary to reroute the A.I.R. injection hoses and flexible duct as illustrated in Figures 3 and 4. Due to differences in motorhome body styles, it may be necessary to modify the lengths of the existing A.I.R. pump hoses. SERVICE PARTS INFORMATION

Part # Description Quantity 15654344 Mounting clamp 1

Parts are expected to be available on 09/10/90. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. GMSPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the parts will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while 400 control is in place.

WARRANTY INFORMATION

For vehicles under warranty use:

Labor Operation: T7066

Labor Time: .8 hr

NOTE: Labor Operation is coded to emissions warranty coverage in the warranty system.


Object Number: 85947  Size: LF


Object Number: 86450  Size: LF


Object Number: 74637  Size: FS


Object Number: 75074  Size: FS

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.