Volvo 850 - Recent Questions, Troubleshooting & Support - Page 5

I believe it gets stored after it is detected 3 times in different run cycles

fault system too lean bank 1 cause intake/exhaust leak air system maf/vaf sensor fuel pressure/pump injectors

Yes. Call a dealer.  If they tell you that you have to come in person or want to charge you then call another.  Even search for dealers over the internet.  Most will give it to you over the phone, a smaller portion will want to either charge or make you come in person.  Again, if that happens just call another dealer.  If the radio is original, you can just give them the VIN.  If you suspect it isn't or if the code they give you doesn't work then you need to pull the radio and gave them the serial number on it.

Apparently you do not have a CD changer connected to your radio and that is why you get an error when you press the CD button. However sometimes it's an error code and means that you need to reenter the code for the radio. Is there a place to put in a CD? If so, here's a link to some info on your radio and entering your code.

http://www.volvo-forums.com/t16110-cd-changer-error-code.htm

Good luck!

You need more oil. Add until it says it is full or in the full range. Also make sure you oil plug is tight on the oil pan.

I read you other post. A motor or transmission mount may cause vibration throughthe whole car. However, it will not cause the delay you described in going into reverse. If you want to know if you have a bad motor mount all you have to do is get someone to help you and watch the motor mounts when you put the thing in gear (both forward and reverse) and brake-torque the engine a little. If the mount is broken, you will see the break when it comes up under load.Otherwise, it sounds to me that you are describing an internal transmission problem.

Get a scanner from IPD for $80 and it will tell you what you need to do.

Volvo 850 (1993-1995) Service Light Reset Under the hood there are 2 diagnostic units (labeled A and B on the cover) next to the washer reservoir. 1. Turn on the ignition and open diagnostic unit A. 2. Locate the flylead (the test wire that is in the plastic holder). 3. Insert the flylead into socket 7. 4. Press the large round test button on the diagnostic unit 4 times, briefly but firmly. 5. When the LED flashes and then stays lit, it will accept the reset code. 6. The reset code for the service light is 1-5-1. 7. Press the large round test button firmly one time and then release it. The LED should be lit. 8. Press the button firmly 5 times and then release it. The LED should be lit. 9. Press the button firmly one more time and then release it. The LED will flash several times. 10. Turn off the ignition switch and replace the flylead in its holder and close the cover. The Service Light has now been reset.

My wife ran into this problem one day when she came out of a store. Turns out the car alarm had been set off in her absence, and the alarm system had immobilized the car. The solution was to simply use the remote (rather than the key) to unlock the car. That cleared the immobilizer, and she started it up and drove off.

if you remove the turbo from that car, the car will not run very well because the computer is setup to run with a turbo device, it need the air flow to force the fuel where it need to go. after removing the turbo you are going to have fuel issue, stay running, be fore you buy it go to the owner ask if they would mind if you or them disconnect the belt from the turbo charger and restart the car, see how well it runs, try and drive it, if every thing works okay, than buy the car and leave the belt off the charger.

Very possible bad ignition wires/cap/rotor. Replace them and the plugs first and the problem will probably go away.

Very common for the thermostat to not allow the engine to get to the required temp and it will set the code. Replace the t/stat with an OEM thermostat

We always have the manifolds surface ground at a machine shop when we do these. The manifold will warp form heat cycling and needs to be flat to seal. Take it to a machine shop and they will now what to do.

Is the check engine light on? Check for fault codes first. Sometimes these engines had issues with carbon build up and poor starting cold. Run a bottle of Techron thru the tank and see if it gets better.

What do you need to know? What symptoms do you have?

You do not over ride codes. You need to correct the fault or the code will continue to reappear.

Open the glove box door. The 2 plastic limit straps that attach to the door have small tabs on the side. With a very small screw driver depress these and detach the straps. Remove the under dash panel. Remove all the screws holding the box in and pull the box out.

Front oxygen sensor code. Check the vacuum line to the fuel pressure regulator and make sure it is ok before you replace the sensor. Any vacuum leak can also cause the code.

Take the registration, your drivers license and yourself to the closest dealer. They can look it up and give it to you in a couple of minutes.