20 Most Recent 1999 Volvo S70 - Page 8 Questions & Answers

The compressor will only get power if the system has the correct amount of refrigerant. There are high and low pressure switches that control that. If you have not had the AC evacuated and recharged, start with that. Or your mechanic could use a "sniffer" to find any leaks first.

This is usually a result of not having enough refrigerant in the system. You may have a leak or it may just be time for a recharge. Bring it to your mechanic and have them evacuate the system and recharge it if there are no leaks. If there is a leak, dye can be added to find the leak once it's recharged. They might also have a 'sniffer" that can find leaks while the compressor is running before recharging it.

If your switch is bad, there will be no function up or down, nor will your hear the faint click at the motor in the door.
If the motor is bad it usually rolls down, because it takes less effort, but will struggle or die out when going up.
If the regulator is bad, it'll usually affect the gear teeth on the motor, causing the window not to hold its position resulting in the window dropping down on its own.

sound like a headlight relay or possibly both low beam lights went out at the same time highly unlikely but possible.
The headlight relay should be in with the fuses and marked accordingly. You can pick one up at any auto parts store for less than $20 and if they are nice they could put it in for you it's very simple

Are you sure about this code ? P01081 isnt listed like a Powertrain Code; wherever P1081 = ECM
720A = Immobilizer communications.

DTC may be set if ignition is left on too long before engine started. I think you can ignore this if there are no other symptoms.

Other posibilities:
P0181 - Fuel temperature sensor A circuit performance

Hope this helps.

if you spilled some on the engine you will smell it until it is evaporated.

could be freezing up in the evaporator core thermister may be your problem that sensor shuts off your compressor to allow the core to defrost also check charge in the system may be overcharged hope this helps

Fig. Cylinder head torque sequence-5-cylinder engines

Install the lower cylinder head with a new gasket. Tighten the bolts in sequence as follows:

1. Step 1: 15 ft. lbs. (20 Nm)
   
2. Step 2: 44 ft. lbs. (60 Nm)
   
3. Step 3: Plus 130°

hope helps.

call a napa or other parts store, ask them for the pump for each model and see if its the same par number ,,,, never mind I just did it for you,, at auto zone they are the same part the 2.3 and 2.4 all the motors have the same thing , from 93 to 2000 so your in luck,, better yet, Its 175.99 so there ya go

does the battery sign come up?

If the check engine light is on have the codes pulled my autozone or advance and post the codes here.

that would be a coil pack needs to be replaced for cylinder 3. here is the firing order, Good Luck Tim

http://autorepair.about.com/library/firing_orders/bl-fo-4350.htm

P0455 OBD-II - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

Symptoms: You likely won't notice any drivability problems.

Causes: A code p0455 most likely means one or more of the following has happened:
A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
Other leak or damaged piece in EVAP system

Possible Solutions: With a p0455, the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, and/or
Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary


Hope this helps (remember to rate and comment this answer).

ets light is fro throttle unit fault you have dirty throttle plates or bad throttle unit /