Hey yall, I could really use your help - trying to fix my girlfriend's volvo. It's a 1994 940 Turbo wagon. 140,000 miles and she bought it with 120,000. Here's the deal.

She took it to a mechanic a month ago for a basic tuneup, as it was stuttering and shaking at a red light. The mechanic put in new plugs, wires, cap and rotor. I'm guessing they weren't volvo oem.

Now a new problem has arisen - the car stalls randomly. I drove it around a bit and when it stalls, it just completely dies. Battery power is still there.. and usually it will turn over right away and off we go. A couple times (maybe, 3 out of 15 stalls) the car wouldn't turn over and we had to leave it and take a cab.

We took it back to the mechanic and he couldn't reproduce the problem (of course!). He checked the obd codes and there were no errors. But I don't trust him. So, I'm not a great mechanic but I can swing a wrench and decided to research a LOT.

It was getting late but I ran to Autozone and grabbed a fuel pump relay (not OEM) and thought it was worth a shot. I sat in the car and let it idle with the old relay, AND the new relay. After about 5-12 minutes of idling (random times) the car would stall. Fired right up afterwards.

Please save me from replacing every damn thing in the engine bay haha

I am considering buying the radio suppression relay and a CPS but I can't just throw $$ at the car until it magically stop stalling. Any help on this is much appreciated!

R