1994 Volvo 850 - Page 7 - Answered Questions & Fixed issues

Could be many things start by checking for fire, fuel, and compression the basics without these it cannot run.

Look in your owner's manual usually written inside

It's a fairly invlved process and you usually do the serpentine belt and timing belt along with it. It's about 2 hours worth of work all together. Here's a good tutorial on it: http://volvospeed.com/Repair/timingbelt.php

sounds like you could have an intermittent problem with your crank position sensor. i had a 89 240 that did the same thing and i ended up having to replace the crank sensor

You will need to turn the ignition to the number 1 position and turn the radio on. It can take several hours, but the word code should come back on. When that happens, you will need to put the correct code in. If you don't have it, a Volvo dealer can give you the correct code from your VIN.

if the vin no may not be able to help, pull out the radio set and get the serial nos and together with it, get your local Volvo dealer to obtain the code. I did mine in Malaysia at no charge.

Your car actually has a timing belt that should be changed along with the tensioner at 70,000 Miles. In the past, I have found that the first question people ask is when was the timing belt replaced.

by the filler valves and a 1994 vehicle will have R134 also the rad in the front of the vehicle is full size

If its got an auto transmission,the fluid goes down the dipstick tube.Hope this helps

Call your local dealer and give them your vin number. They will be able to look it up for you.

You may have to call more than one as some will not give you the info over the phone.

This Volvo code is only available from the Main Dealer or a Radio Decoding Service

with the little research i've done including looking up the part. which only lists one being before the catyilitic converter (uptream) and the fact that your car being 1994 with obd I emission controls (obd II reqiures two - 1 upstream and 1 downsteam), i'm making an educated guess that it only has one O2 sensor

Hi,
Well It has a bolt and a wood-ruff key holding it in place. I am sure you took the center bolt out,so with the pry bar on one side with mild pressure tap on the opposite side of the balancer with a small hammer. Remembering this is not a press fit.So by synchronizing the pressure with the tap it should move tiny bits at a time. It is kind of a "feel" thing. Not a "force " thing.
I actually wish I were there to help.This kind of removal is kind of tricky but it does work. Tiny movements at a time.
Best Luck to you.
Wayne

check the wire got fire or not. that is cheapest way to start.

Did your car have brown head gasket?

something like O2 sensor will cause the check engine light stay on, not too worries,or you may take it to dealer did a service.(the light may stay on on that year model even after service.)

could be his water pump going out or the thermostat sticking. Most likely the thermostat sticking

Hope this helps.

if the previous owner(s)had any sense they would have written it in the service book,but hey...you need to have the thing recoded dealers, do NOT keep codes as you can change it but you need original first....

there is a bolt [or 2] that are hidden undernieth pump. other than that they come off easy