For 1990-2009 cars

# Transmission Fluid Leaking At Cooler Lines - keywords AF17 hose leak line loss

Subject: | Transmission Fluid Leaking at Cooler Lines

Models: | 2008 Saturn Astra

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

### Condition/Concern:

A technician may find a transmission fluid leak at the cooler hose, typically at the lower hose/pipe fitting on the transmission. (see illustration below)

### Recommendation/Instructions:

Once the leak has been identified as a cooler line fitting, carefully remove the line to determine if the o-ring/seal is damaged. This seal is available as a service part and should be replaced each time a line is removed for any reason. SI document #1995787 "Transmission Fluid Cooler Hose/Pipe Replacement" details the procedure needed for servicing these seals.

Note: Please file a Field Product Report on this issue by following SI bulletin 02-00-89-002F.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.