i have an 88 volvo 240 wagon with 89K miles on it… it’s been passed down through the family, is in great shape and is a joy to own. i have always have it serviced at the volvo dealership and recently had a bunch of work done to it including complete lube, oil and filter change, replaced the radiator overflow cap, replaced a leaking valve cover gasket, replaced the oil pan gasket, replaced the rear diff gasket and added oil, and replaced the sway bar links (it was an expensive visit).
to my dismay, on the way home, accelerating hard up a hill, something under the car started to rattle and black smoke started coming out of the back of the car. i took it back to the dealership and they replaced a leaking seal that they said was the problem, on the way home, same thing with the rattle and smoke happened on the same hill… maybe just stop driving on that hill, right? so i took it back and they changed the oil again (the oil levels were a bit high) and said they couldn’t find anything wrong… drove the car home and seemed not to have the problem (though i did take it easy on the hill).
so today, i take the car out for a drive (usually just drive it on the weekend), and accelerating hard up the same hill i get the same rattling and black smoke that continues until i let off the acceleration. by the time i get home (a couple blocks later), it’s like nothing ever happened.
so a couple questions:
- any ideas what’s going on?
- is it safe to drive as long as i don’t accelerate hard?
- never had this issue before all the work was done, kind of seems like i should take the car back to the dealership, but this would be the 4th time for the same issue…
apologies if this has been answered in another form… did some searching and didn’t think there was a match.