Engine misfire and shaking 1997 volvo 960 - 2003 Volvo S80

francisco navarro

• 241 Answers
• Posted on May 29, 2008

SOURCE: 1996 Volvo 960 starter

is in the middle by the drivers side.
you wont be able to replace it from top.
you will have to remove it from underneath the car.
it will be aroud 12 - 15 inches from bottom to top of vehicle, by the drivers side

SOURCE: head bolt torque specs and timing marcs for a 94 volvo 960 6cyl

you do 14 foot pounds then 45 foot pounds then a 120 degree turn.if aluminum heads are what you have

SOURCE: check engine lite is on:1997 volvo 960 p0705 transmission code

Just because your Check Engine light came on doesn't mean there's something wrong at all. Various Mechanical functions are timed by the Manufacture to signify Servicing required.

Sometimes they're set at 50K miles or more, when the light starts going on, all you have to do is take it to an Authorized Service Shop and they Reset the timer. Most places won't even charge you for doing it unless they find something wrong.

SOURCE: ENGINE MISFIRE AND SHAKING

check your wire harness on the top of the engine. Volvo must have bought harnesses from Mercedes. The insulation just cracks and disintegrates, then the wires short. Not good for an ignition system.Once they short It can fry the circuit for that cylinder in the computer. Does not set a code other than Misfire.

SOURCE: the motor shakes in my 960 volvo sedan why could

A shaking engine usually is an indicator of an engine missfire. Secondary ignition components are the most common failure (Spark plugs, plug wires, etc..). Less likely, but still a consideration are the fuel system components such as the fuel injectors or filter. Further down the list with a vibration in gear at idle are bad engine mounts. If it worsens with engine load such as acceleration then it is likely the ignition system.
Good luck