Questions and Answers

Honda Accord Water Pump Noise

Q. Dear Sirs, I have a 1999 Honda Accord. There is a very strange whining noise coming from around the water pump. I have found similar problem explanation in the following web address: Strange Water Pump Noises, referring Honda TSB No 10188, but it's for 1993 model. I have the car checked in the local Honda Garage, and they advised me to replace the water pump, as they never heard of such Honda Technical Service Bulletin.

Please, advise me if this is only an US Honda information, and is not applicable to UK Honda.

Best regards,
Peter

A. I think this is the TSB they were referring to, although I don't know where they got the number 10188.

Bulletin No.: 93-034

Model: 1992 - 1993 Accord Civic

Applicable To: All

File Under: Engine

Issue Date: September 10, 1993

Title: Noisy Water Pump

SYMPTOM:
A humming or whining noise coming from the water pump. The noise is most audible below 1100 rpm, and occurs only when the coolant is at normal operating temperature.

NOTE: This noise is often mistaken to be a dry or faulty alternator bearing. Diagnose the symptom carefully.

PROBABLE CAUSE:
Normal friction between water pump shaft and seal.

CORRECTIVE ACTION:
Add the water pump lubricant listed under PARTS INFORMATION to the radiator coolant.

There are no TSBs for the 1999 Honda Accord water pumps but If it is just noisy I don't see what harm adding some Honda water pump lubricant, P/N 08798-9005, would do. It can only help I believe.

Additional Information provided courtesy of AllDATA