Hi I've been lurking this forum for about the past few days as a guest (I've had my 3g for a couple weeks now) and I've found lots of useful information on repairing carbs but I'm not sure if I should fix mine myself or leave it up to a mechanic.
I took my car to my mechanic to have everything checked out last week and along with replacing the brake master cylinder, head gasket, distributor cap, cv joint and ball joint he mentioned that I might need to get my carburetor rebuilt soon. Well, soon has become now, I was out driving for quite a bit in the ~100 degree weather yesterday and when I arrived at one of my destinations and put my car in park it started idling at about 3k rpms. I went inside and came back out to start it a few minutes later and it was on its way to 4k rpms when I shut it off and it shook for several seconds and let off an odd scent on the passenger side. I had noticed on my way there in start and stop traffic that when I would let off the brakes it would start to accelerate up to 20mph without even giving it any gas.
I managed to get it home later that day with it starting fine and idling around 2k (which has been the average) after the drive home (only about 5 miles).
My biggest question is whether it's something I could repair on my own or if I should pay my mechanic $600 to rebuild it. I've seen a lot of talk about vacuum lines and was wondering if someone with no prior experience could replace those.
I just wanted to check first because I'm starting to distrust my mechanic since he tried to sell me new brake pads and rotors only to change his mind the next day when I told him the last ones were put on about 15k miles ago. I was lucky enough to get a 3g with a big fat envelope full of maintenance records and receipts
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