Hi Colin:

However, I'm perplexed because the fuel pump makes no sound

L-Jetronic pumps can run very quietly, but I've never heard one that is silent. My guess is that it's not running. I'd try running a set of jumpers from the battery directly to the pump terminals or plug. See if it runs then. If it doesn't, the pump is bad. If it does, there is a problem in the car's wiring. You can start tracing that with a VOM or a test light. Also, if the pump does run, it would make a lot of sense to check the fuel pressure at the engine with an inline fuel pressure gauge.


Warmest,

Rich Wagner
Montrose, CO, USA
'82 GTV6 --
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