Help finding Vacuum Leak 93 850

ralforque · Post by **ralforque** » 27 Dec 2005, 21:18

I am getting codes 113 and 232 from (A2) socket on my 93 850. Replaced IAC Valve, TPS and O2 sensor.

I need help locating vacuum leak. Any suggestions?

Post by **matthew1** » 28 Dec 2005, 14:52

Check the small-diameter white tubes in the engine bay. There's one that runs across the top in the front. Others elsewhere... can't remember off the top of my head. Also check their elbows for cracks.

White850Turbo:
"The best way to find the leak is with an unlit propane torch; when you get near the leak, the idle speed will rise."

ralforque · Post by **ralforque** » 28 Dec 2005, 20:08

Found the leak. It's in between thermostat and fuel injector #1. Way below. I can't reach it with my bare hands. I can't even see all the way through. I used a carb cleaner and sprayed down there and the engine rev'd up.

This looks like a big job to dismantle and put back. Any suggestions?

lh · Post by lh » 29 Dec 2005, 09:45

check out http://www.volvospeed.com/volvo_performance.php
there is a section on vacuum lines in repairs and maintenence that is helpfull