BEJinFbk wrote: ↑29 Jan 2019, 13:06 One could override the speed 4
full voltage relay to get heat for now.

How would one go about that?

Thanks, I'll have to check the hoses for leaks, as well as the J and L hoses.

Engine idles at 1,000 RPM

1996 Volvo 850 2.5L Automatic. Heating and Air Conditioning unit stopped functioning over night. Oddly enough, if I press down hard on the Fan Speed Selector Switch, on Speed Setting 1 or 2 only, the Blower Motor turns on to blow out desired air temperature. But I have to keep the selector switch de...

1996 Volvo 850 2.5L Automatic. Intermittent problems. Engine light and ABS light constantly illuminated, Service Light intermittent. Gauge Cluster has 3 common problem scenarios: EITHER All works as intended OR Everything except the Speedometer and Odometer works OR All gauges bounce for a while, th...

1996 Volvo 850 2.5L Automatic. 175K ish miles (Odometer intermittent). I used a Matco Scan Tool to pull the codes. 2 are shown:

PO172
P0440

Looked them up, not sure how to continue diagnosing problems.
All help or recommendations welcome and appreciated

Problem occurs when at a stop (both in Drive and in Park), and also when moving (at both high and low speeds). Problem is intermittent, comes and goes seemingly whenever it wants. - When the brake pedal is depressed, a clicking noise is heard from the center console (Shift Solenoid maybe?) - When th...