My brick starts perfectly when the outside air temperature is < 50 degrees F. For the last 5 years or so, as the temperature starts to go up in the spring, summer and fall the car is more difficult to start. Sometimes I have to crank for 15-20 seconds while pumping the gas to start and then the car will run roughly for 20 seconds or so and then all is ok. This is followed by a large puff of smoke that smells of gasoline. With spring and summer approaching I would like to diagnose and fix this issue.
Car is 1990 240 DL, 200K miles 1 owner and nearly everything on the engine is original.
Currently no codes to report and check engine light is not on, but I am having the start issues as the weather is warming up.
Thoughts on how to trouble shoot this?
Thanks for any and all help.
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Make something idiot proof and someone will invent a better idiot.
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