Question about 1994 Volvo 850

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Car stalling I have a 1994 Volvo 850. I have been having a problem with it stalling ocassionally while driving. It always starts back up after a few seconds and runs fine afterwards. However, it doesn't want to start at all now. I replaced the fuel filter and coil. Also I replaced the fuel injector relay but the problem still exist. What could be the problem? Is it the ignition relay? Thanks.

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  • mdw_66 Jul 29, 2008

    It has a new battery. I have taken it to the shop on several occasions (when it is running) and have had it connected to the computer but they cannot find anything wrong with it.

  • truthofthecr Aug 23, 2008

    I've had the same problem. For 2 years now my wife's 1994 Volvo 850 (non-turbo) has been stalling, seemingly randomly. It may stall slightly more frequently on a slope, but not necessarily. I have replaced the fuel filter and have inspected the fuel evaporation system for any leaks or kinks in the hose. I have found a worn hose on the rollover valve that shuts the line if the car is on a slope over 45 degrees. I have fixed that problem at least once but to no avail. Today I found the same hose cracked after the car stalling 12 times in three days with not that much driving. I am skeptical if this will fix the problem, but I sure hope so. If anybody knows of something else I would love to hear it.

  • riccardo1973 Jan 25, 2009

    i have a 1995 850 se auto, today, the car vould not start as turning the ignition key. it looks like there is no sign of reaction from the car. the battery is ok and i've tryed to start with jumpers with no differencies at all. the car has alwayse start at first attempt befor today...

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Hi there i too have a 1994 Volvo 850 Turbo, i went through the same awful, dangerous stalling problem if you have the same lights coming up, oil, and what not then sudden loss of power, no engine rpm but other electrics like radio work etc, i could never tell that i was stalling because i always had the music on, but watch the Rpm's i also had no power steering so i found out quick i was stalled, i would then after a few minutes, 5 max be able to restart the car, it should very likely be the fuel pump relay, its located where the fuses are on the left side under a couple of torx screws, its a green most likely relay labeled 103, if its red it might have already been changed or newer, i'm not sure what the colour difference does, but i replaced my relay with a 103 red relay from a 1998, or 1999 Volvo s&0 same relay. I found and researched that its a famous problem and can be many things like cam shaft postilion sensor, vacuum leaks, fuel pump etc, but if you can hear the pump on start up when the car is just ON it should be fine, the relay after time becomes intermittent and switches on and off as it pleases sometimes aggravated by turns and what not i think to due the pump and gas slushing around? However, you have described the exact problem my car had and the Volvo Experts couldn't figure it out, it never stalled for them during roads tests or during a run in the shop, always did for me, its the Fuel Pump Relay* available on ebay, for cheap as pay no more than $60 Cdn, as i think a new one is around that price.
A recommendation is to get the redish pinky one as it worked for me, i know it is newer than the green 103 relay, let me know if it works but it for sure changed things for me, no more scare of ending up a road hazard or being embarrassed.

Posted on Dec 31, 2008

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My 1994 850 Volvo did the same thing and it was the Throttle Position Sensor

Posted on Sep 14, 2008

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Problem is usually due to fuel relay. There are two of them one near the radiator and one near the fuse box, it is the fuse box one that causes the problem. Some people have said you can knock on it to get it temporarily working again, I replaced mine and the problem has not reappeared.
This is the part http://www.drivewire.com/products/volvo-850/fuel-pump-relay/843/

Posted on Sep 15, 2008

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I need code for radio. my car is volvo 850 sw 1994
can you help

Posted on Feb 21, 2009

Fuel pump

Posted on Sep 07, 2008

Have you checked the battery for a good charge?

Posted on Jul 22, 2008

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This worked for me and others:
Problem is usually due to fuel relay. There are two of them one nearthe radiator and one near the fuse box, it is the fuse box one thatcauses the problem. Some people have said you can knock on it to get ittemporarily working again, I replaced mine and the problem has notreappeared. Just unplug and plug in new one. No more stalling.
This is the part http://www.drivewire.com/products/volvo-850/fuel-pump-relay/843/

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