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Nuclear Tourist
Apr 7, 2005

Thanks for this thread, maybe now I can finally figure out what kind of voodoo is going on with my car.

I own a Mk.1 Jetta TX from '84 and about a month and a half ago it developed a crack in its radiator. I've since had the radiator replaced with a shiny new one, however- before it was replaced the old leaky radiator managed to spray coolant all over the engine block and various components which I would assume probably don't react too well with getting soaked.

So while the new radiator appears to be working just fine the car seems to have developed some other issues. It began as occasional vibrations when I pushed on the throttle, at first these vibrations were relatively minior and would come and go so I didn't think too much about them because, hey, it's a well-used 26 year old car and every time I drive it I seem to notice something new rattling/making noise. Anyhow, the vibrations grew progressively worse over the course of a week or two until the point where I'm at now, where the car is basically undrivable. It bucks and shakes like a rodeo horse when I try to drive it and the engine also likes to cut out and die when I lift off the throttle at low speeds, which is quite scary.

So basically I'm not sure what could be causing this. Did the old leaky radiator spray coolant into somewhere where it really shouldn't have? Could it simply be bad spark plugs? Is the seal between the air filter and carburetor leaky? Could it be some sort of fuel supply witchcraft? Compression issues? Also, for what its worth this problem only seems to manifest itself when the car has warmed up slightly. On a cold day I can maybe drive around for half a kilometer before it starts acting up, but on a warm day it basically craps itself from the get-go.

Please help me internet :(

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Nuclear Tourist
Apr 7, 2005

my1999gsr posted:

I wish I could help you but there's so few Mk1 cars left in my area (rust belt) that I've only had experience with a handful. Still, check the basic stuff like cap and rotor and plugs because it sounds like you have some kind of ignition problem. Maybe one of the other goons has some input here.

Alright I'll do that, thanks anyway!

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