I have a 94 850 (non-turbo) that I bought about 6 months ago. It has 114k miles on it, and a few days ago, (as I have previously posted about), I cleaned under the good really good, and got it really wet. It had ran perfectly before that day, and now, especially from a stop, accelerating makes the car "chug", if you don't just go really lightly on the accelerator and let it build up speed. Per your recommendation, I pulled the plug wires, and sure enough, found that plug 2 and 3 were a little wet. I dried them really well, and though it is better, still have the "chugging". I have decided that since the plugs look a little "burned" (the previous owner had put Champion plugs in it...eeeeeks!!!), that I am going to go ahead and change the plugs, wires, distributor cap, and rotor. This brings me to my 2 questions......do you know of anything I am "missing" that I also need to check regarding the "chugging" problem, and also....I thought I would go back with genuine Volvo parts, unless you recommend a better solution. Thanks a bunch!!!! We have 4 of these cars, and you guys are real lifesavers to me!!

 

I always use the OEM tune up parts. I like them better than the cheaply made aftermarket ones.

 

Great! I agree with ya! ALSO....can you think of ANYTHING else I need to check out regarding this "chugging" problem besides just doing the tune up? Thanks again!

 

That should be it.
Is the check engine light on?

 

Did you check under the distributor cap?

 

OK---THANKS!! No, the check engine light is NOT on. I checked under the distributor, and it looked fine...dry as a bone.