1994 940t 307K

We were at dinner with friends last night. The car failed to start. Because of traffic I couldn’t hear the pumps cycle. I swapped out the fuel injection relay and the RSR but still no start. I checked and had spark. I scooted under the car and found a silent pump when my wife tried to start the car. As I was hitting the pump with my flashlight she tried again and it started. We drove the 25 miles home with fingers crossed.

I got up this morning and installed a new pump and filter. All is well. The car is just shy of 307K. I would say that twenty eight years and that many miles is pretty good service out of the original pump.

I opened the pump up and used a cheap digital caliper to take some measurements. The commutator was .066 while the space between the brushes was .063. The brushes were absolutely done moving.


--
Any twenty minute job is just a broken bolt away from a three day ordeal

Hi,

I know how you feel. No matter how nice I ask, my wife wont go under the car either.

Peter

You can’t complain…😉 The Volvo main pumps are pretty robust! I sold my 90 240 DL with over 300k miles on it and the main pump was still going. Did replace the in-tank unit once. My 95 850 GLT (1 pump system) was still going strong at 250k+.
--
Will I buy another Volvo??? We'll see....

I did the main pump on a 1983 volvo 240. The diagnostics were a bit tougher as the pump could be heard running but No fuel. Once I replaced the pump the problem was solved. Wonder why the pump failed I cut it open with a dremel cut off wheel. Turns out there is a plastic coupling connecting the electric motor to the pump. The coupling prongs were chemically aged brittle from the gasoline and had broken the drive connection. Motor running, pump not turning.😎