Question For The Experts

[Joe G]

Quick question. Car has a walbro fuel pump in tank and an external Bosch 044 pump from a process west swirl pot. Stopped the car tonight and notices that the pump is abnormally loud. It usually has a normal high pitched whine but its ridiculously loud tonight and sounds like its stuttering as the pitch is constantly changing! Car is still running fine with no issues on full boost.

Any suggestions?

Joe

[scottishtaffy]

if your sure the noise is from the back and the pump i would say that its maybe early warning of pump wear or failure