Jim Grant's Tech Tips
'90 Acura Integra RS 2, Leak in Trunk
Q: I have rain water that seems to be coming into the trunk of my 90 Acura Integra RS 2 door hatchback. All I can figure is that it maybe coming in through the brake lights or through the gutters that run along under the hatchback and then drain over the brake lights. Anyway, it seems a mystery to me where this water is getting in!
A: I would suggest removing everything including the liners/interior trim from the trunk. Then remove any remaining water and dry the trunk. My choice for tracking water leaks is baby powder, smells okay and cleans up easy. Apply a light dusting of baby powder around the trunk and take a water hose to the vehicle or wait for a rain. When you open the trunk you should have little trouble finding the path the water snuck in from. Just follow the path left by the baby powder for the source of the leak. One other note, ALLDATA Information Systems has an Acura Technical Service Bulletin #89021 that addresses a leak in the spare tire well. As you stand at the rear of the vehicle look at the 6 Oclock position in the spare tire well. There was a puncture from the factory in the base of the spare tire well that was not sealed on some vehicles. This would allow water to enter the spare tire well while the vehicle was being driven. Just check to be sure that the seal is good or that the repair has not failed.