1993 Volvo 850glt mystery woes!

Don't get me wrong, this car has been great to me! bought it a year ago with only 95k miles on it, but right away a problem started. If i filled the gas tank more than halfway, the car started to seriously hesitate when accellerating, sometimes even stalling out completely. Being the impulsive and poor young college student that i am, i fixed the problem by never filling the tank more than halfway.

Well, problem's gotten worse (imagine that!) The car more or less hesitates all the time now, especially badly under 3k rpm. The car also stalls out intermittently, and seemingly randomly. Suddenly the throttle will just stop responding, and the engine will slowly wind down until it stalls out. Sometimes i can just put it in neutral (at which point it'll stall out right away) and after about 20-30 second of coasting pop the clutch and it'll start right up, but most of the time it starts back up with the same problem. I have to pull over, wait 2-3 minutes, and it starts right back up again.

Yet, throughout all this, it doesn't give up a single error code. I've replaced the fuel filter, and i added fuel injector cleaner, my next bet is probably going to be to change the fuel pump and hope for the best. Any ideas?

Reply to
popeoftheweasles
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There are some relay issues with the fuel system on 850's. Check the Brick Board. I thought my 94 was dead, turned out to be bad spark plug wires, shorted out , but kicked out knock sensor codes. I could see the shorting in the dark. In Texas, I could not get a 93 850 with standard transmission. Where are you?

Reply to
JDG

Reply to
funwheels

I also had a 240 where this small rubber hose has slid off. It would pump gas if the tank was full enough or when going down hill, but would suck air when I climbed hills. The mechanic know immediately what it was.

Reply to
Stephen Henning

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