posted by
someone claiming to be Brandon
on
Fri Nov 29 03:46 CST 2002 [ RELATED]
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I was driving to work today and I figured that I havent done the Itallian tune up on my 96 964. Put the car in L and let the RPM's rise to 4500 RPM's for about 20 seconds. Then I nailed the throttle and switched out of L for a redline upshift. For the first time ever after doing this I got A cloud of smoke out of the tail-pipe. This wasn't the little puff that occurs when the throttle is nailed. Has anyone had this happen to them. This was a hughe cloud that took up both lanes of an Undivided highway. The car runs fine but the Check engine light came on. I pulled over and turned the car off opened the hood and there was no smoke, no smell and the engine was still there. The car started fine and ran fine all the way to work. Thanks for any replies.
Brandon
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Don't do that again #@#@#@## my .02s
--
1996 964 130,900 Miles
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i agree....not exactly a mechanically sympathetic way to treat a nice car...im REALLY glad i dont have your transmision, engine mounts, con rods, dif,.......
oh ^&%& maybee the last person to have my car read a post like this,,,....
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posted by
someone claiming to be Brandon
on
Mon Dec 2 18:33 CST 2002 [ RELATED]
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torrec57, The kick inside,
I really hope you guys dont take your cars to the Volvo Dealer. That is where I learned this technique. I did find out that I had a lot of deposits thus the smoke. I had not done this in about 20000 miles. Plus these cars are made to handle WOT. I change my Tranny oil every 30k miles most people dont change their fluid in the whole life of the car. I also Change my Engine oil every 5k miles with Mobile 1 synthetic. I have been through 1 set of motor mounts in 85k miles which is pretty good considering they are liquid filled. These cars should be driven hard every once in a while, and filled with premium gas too.
Brandon
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posted by
someone claiming to be keefus
on
Fri Nov 29 07:20 CST 2002 [ RELATED]
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Read an almost identical post to yours on Bay 13 recently, the consensus was that a bunch of crud was loosened up and forced throught the combustion process. You have a 960 right? Abe Crombie specifically reccommends doing this on a regular basis for 960's in the 700/900 FAQ.
Of course, fully synthetic oil helps, too.
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posted by
someone claiming to be steve
on
Fri Nov 29 05:16 CST 2002 [ RELATED]
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You blew a lot of chamber and valve deposits out the back, probably upsetting the oxygen sensor in the process.
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posted by
someone claiming to be Brandon
on
Fri Nov 29 08:35 CST 2002 [ RELATED]
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Im going to check the codes at autozone tonight when I go home. Does the Code for the O2 sensor automatically reset itself. Is an O2 sensor a cheap fix or espensive? Or is it something I dont have to worry about.
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posted by
someone claiming to be Bobby C
on
Fri Nov 29 08:52 CST 2002 [ RELATED]
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All post '95 960 Series OBD II equipped cars have two O2 sensors, one before the CAT and one after. The computer compares the two readings to tell the check system if the CAT is doing its job properly.
Assuming that only your before-CAT O2 sensor was damaged by the crud, you will have to replace it, then have the Check Engine light reset. This is a cheap fix and should cost under $200 if the dealer does it. Of course, if it trashed the second one as well, double that figure. It's possible that the dealer may quote over $150 for the part alone, but aftermarket 3-wire heated sensors are available for under $75.
If the O2 sensor/s was/were just fouled and burn clean, I believe that the OBD II will turn the light out, but retain the fault in the memory.
I suspect if it was O2 sensor fouling that it might burn clean if the exhaust temp is raised sufficiently for enough time. You can decide if you wish to wait before replacing the sensor/s after checking the code.
Bob
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What year is your car? In my '98 S90 the tri-electrode Volvo plugs came with the car. Maybe the PO changed the plugs to a single slectrode type on your car?
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What year is your car? In my '98 S90 the tri-electrode Volvo plugs came with the car. Maybe the PO changed the plugs to a single slectrode type on your car?
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Interesting..... out 98 S90 (purchased in Aug. 1997) came with single electrode plugs from Volvo. It now has the 3 electrode plugs and they do run smoother....
--
1998 S90 062,500 1995 964 140,600
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posted by
someone claiming to be Bobby C
on
Fri Nov 29 09:21 CST 2002 [ RELATED]
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The 22.5 mpg I get with my 965 seems about 5 mpg too little considering the car's engine/gear ratio/weight and the way I drive.
There must be something that would improve mileage (synthetic oil made no difference).
Bob
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Our 95 960 and our 98 S90 routinely gets 26-29 mpg. In fact, we just took a 350 mile round trip, same day. Started at an altitude of 7,200 feet, drove over two mountain passes (both above 10,000 feet) down to 5,200 feet and back again (same route) and avereaged 28.81 mpg in our 95 960. And that was with studded snow tires on all four corners.
--
1998 S90 062,500 1995 964 140,600
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posted by
someone claiming to be Bobby C
on
Sun Dec 1 12:42 CST 2002 [ RELATED]
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I thought my mileage was awful until I studied a survey earlier in the month.
I still think it's awful, but it seems it's not unusual for these engined cars.
What did your get before the tri-tipped plugs? Did you do anything else to get the additional mileage?
Bob
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I don't think the tri-electrode plugs made a noticible increase in mileage. There was however a seat of the pants feeling of noticeably more smoothness during acceleration. I also use synthetic oil (M1) but the mileage improvement is only slight. I think the big difference for me is that I live at such a high altitude. You loose 3% air density per 1000 foot elevation increase so the ECU leans out the car to match the air load comming in. Less power, but more MPG. When I used to live at sea level, in mixed driving, a lot of AC use, I averaged just under 23 mpg. Highway trips were in the 25-26 mpg range.
--
1998 S90 062,500 1995 964 140,600
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On a recent trip I took, my 960 got 31mpg over a distance of 700 miles with cruising speeds dialed in at 75mph, have never seen mileage that high before. As far a around town I haven't done the math but I can tell you the trip odometer which I reset at each fill up is reading much higher than I'm used to. Oh yeah, I use premium in all my car too. I find that both Volvos will not develop maximum power on anything less and both get lousy mileage on regular. The 240 is especially sensitive, it's a dog on regular, no pinging though. I'll bet most latter 240 drivers are not aware their cars are ready for the highest octain and don't know what they are missing.
--
'92 240 @45k & '96 960 @41k
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posted by
someone claiming to be Bobby C
on
Sun Dec 1 12:50 CST 2002 [ RELATED]
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I've been running 87 octane per the owners' manual, but the car does ping very slightly when lugged (before it downshifts on hills, even on "S" setting). I will try a tank of premium and see if I gain any MPG. I would have to gain at least 8% MPG to break even on the increased fuel cost.
The car runs very smoothly on 87, and it's dead flat around here; the only hills (where it will lightly ping for a second or two) are when I drive elsewhere.
How much of your improvement do you attribute to the new plugs, and what were you getting before?
Bob
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I don't really have recent solid fuel mileage numbers before and after the plugs. I'm pretty sure before the plugs I was getting anywhere from 17mpg to 21mpg in the city. I've only had to refill the tank in city driving a couple of times since the plugs and I did not run the numbers, but I did notice much higher readings on the trip odometer that what I've become accustomed to. I've so rarely driven my Volvo's on long trips, I really have no other current info that I got about 31mpg in the 960 on that trip after the plugs. There was no change in power or smoothness though.
For several years the most mileage I've put on any one car would be less than 3500 miles as I do not commute to work. As of two years ago, both Volvo's have seen under 1000 miles a year. That's because I bought a Miata and it quickly stole the whole show, I've been averaging 10k miles a year on it and that's all recreational driving 
--
'92 240 @45k & '96 960 @41k
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posted by
someone claiming to be steve
on
Fri Nov 29 05:58 CST 2002 [ RELATED]
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The water torture is a great idea, but I worry about the effect of the Sea Foam on the catalytic converter.
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I've never heard of any problems caused by seafoam or any other top engine treatment. I've run this several times on my Miata and recently I pulled the Cat off as I was trying to track down a problem (found it was in the ECU) and @ 40k miles it was so clean a perfect inside it looked like it had never been used.
--
'92 240 @45k & '96 960 @41k
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posted by
someone claiming to be Brandon
on
Fri Nov 29 05:41 CST 2002 [ RELATED]
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I use the Volvo spark plugs too. I am going to try that "Chinese water torture " on my car.
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Hi Brandon ....
Maybe if you had been driving a "Bertone" it would have appreciated the "Italian Tune up"
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Brett Sutherland & the 1.5 million mile 122 Canadian
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Thats a post I made on a Miata message board, works just as good on a Volvo 
