I have a 1994 Volvo 850 that did the same thing. It was the fuel pump relay, a $50 part that is easy to replace yourself. It could also be the thermostat ($75) in the air flow box. Some people remove the bad thermostat and fix the air flow tube in the position with the air flow coming in from the front of the car. People say you can freeze your engine in winter if you live in a cold climate. It rarely gets cold where I live so it wasn't a problem for me. You do get better gas mileage without that thermostat. I ran my car without the thermostat for about a year and then put a new one in because I started having rough idling problems when the engine had not warmed up yet. The thermostat funnels in hot air from the manifold (?) until the engine warms up and then the spring in the thermostat closes off the tunnel with that hot air flow and opens up the tunnel with the cooler air flow coming in from the front of the car. If the thermostat quits working, the hot air keeps coming in and the engine shuts off after about 10 minutes of driving. The car will usually start right up after you wait a few minutes. These symptoms don't usually show any engine codes.
Oct 29, 2013 |
1996 Volvo 850