1994 850 stalling while running then restarts w/in mins

douglasjreno · Post by **douglasjreno** » 02 May 2010, 14:09

yes i clean it every time i change the oil think i may need to clean it more often than that? When it stalls i still get no error codes. no chk engine light.

Post by **Ozark Lee** » 02 May 2010, 14:37

The next time it quits on you check for fuel pressure at the schrader valve on the end of the fuel rail. Your symptoms are screaming fuel pump relay and they tend to crap out in the spring and in the fall when the temperature changes. If you know how to solder you can fix the relay for a few bucks worth of Radio Shack parts.

https://www.matthewsvolvosite.com/forums ... php?t=9681

...Lee

douglasjreno · Post by **douglasjreno** » 02 May 2010, 14:51

whats the best thing to chk that with the last time i chkd it i jacked up my pressure gauge? got an idea for something better suited to chk the pressure with?

Post by **Ozark Lee** » 02 May 2010, 18:03

http://www.harborfreight.com/automotive ... 92699.html

If you have a turbo the pipe to the inter cooler is in the way and it really need a 90 degree elbow. We had a member that fabricated an adapter but I can't seem to find the thread for you.

Tire pressure gauges are cheap and disposable but they are normally not accurate and be careful not get gasoline sprayed into your eyes. That said, you can figure out if you have any pressure at all with a tire gauge.

...Lee

douglasjreno · Post by **douglasjreno** » 02 May 2010, 18:23

will let you know tomorrow its an every day occurance

claymore850 · Post by **claymore850** » 02 May 2010, 21:30

You have to check your EVAP valve, this is a one way stuff, its located over the cooling fan .inside a cilindrical foam cover..

Did you have some randoms failures??? Suddenly dies at highway speed??..On a hot day no start??

To check you have to remove it from the hoses..you have to make a vacuum test..just one way have to leave pass....

Its very easy to check, replace and its cheaper too!!

I nearly became crazy until I replace it...

scott31 · Post by **scott31** » 03 May 2010, 07:53

check and clean the iac valve. i chased mine down that way. also check the crank sensor and cam sensors.

diveshack · Post by **diveshack** » 03 May 2010, 08:17

I have the exact problem with my 1995 850 turbo wagon. Can't figure out for the life of me - which will be a problem if it stalls at the wrong time!!!

douglasjreno · Post by **douglasjreno** » 04 May 2010, 14:08

ok just for spite i did the relay rebuild i will update tomorrow when i drive it see if it stalls, if it does i will chk the pressure right after.

douglasjreno · Post by **douglasjreno** » 01 Jun 2010, 17:19

Looks like the relay rebuild fixed it hasn't occured in 3 weeks.

Thanks for all the help.

1994 850 stalling while running then restarts w/in mins

Re: 1994 850 stalling while running then restarts w/in mins