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Engine stalling, RPM drops to 0 while driving

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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kristupas
Posts: 4
Joined: 3 February 2020
Year and Model: 1997 850
Location: Vilnius

Engine stalling, RPM drops to 0 while driving

Post by kristupas »

I have a 1997 850 N/A. Car had starting problems for over a year. It would fire right up when cold. Sometime wouldn't start at all when hot. About a month ago, engine started stalling while driving. RPM would drop to 0 while coasting. Turning the key off, then back on would restart the engine.

Today, I was coasting at 40MPH, and engine stalled. This time, cycling the key didn't help. I stopped the car, popped the hood to help the engine cooldown. After 25 minutes, it started right up.

I think I'm not getting a spark. Fuel seems to be fine (it sprays gas when pressing the pin)

So far I have replaced: fuel pump & relay, thermostat, coolant temp sensor, crank and cam sensors, rotor and cap, wires. The only thing that hasn't been replaced are the coil, wiring and ECU.

No shop want to take this job. Whenever I make an appointment, the car is running perfect.

Honestly, I'm considering ditching the car.

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