Some people can be such smarta$$'s, of course he's kidding, jwright is correct, it's the air pump that helps fire off the catalytic converter when the car is cold, that's why you don't hear it on a warm car. Should run for about 20 seconds then it shuts off.
I just got my car back from the dealer who did the 1-year service. Car is running great but with a bit of slightly unusual behavior.
I usually park in a garage at home and drive the car to the train station, retrieving it at the end of the workday. Up until the recent service what was "normal" was that the air-pump fan would run for the first start of the day, but would only run for the trip home if the ambient temp was cool/cold. Needless to say it has been bitter cold for DC (high of 20F) and I haven't heard the fan in the evening, only in the morning. Wonder what changed?
my car does the same thing when i turn it on, it sounds like it "reves" high then it stop, for about 30 seconds. but it does not do it in cold weather. i had a mustang and at start up it used to rev to 900 rpm for about 20 seconds and then go down, i think the smart is doing the same thing. not sure. but my mustang used to do it in cold also. yes. my first car was a v8 mustang, then a 4 cylinder honda civic, to a 3 cylinder smart.
24 posts and only jwight provided the correct information with a reference to another thread that explained it further - and his was the third post which everyone else ignored.
speaking of air in the tires.
originaly they were filed in france, if you close your eyes and blow it in your face, you can be there.
no really now, have you done the tire air change to let out the unknown foreign air and put in fresh ambient air?
It is the catilayic converter fan. since the engine is in the rear there is not enough air circulation in the back on the cat. so they put a fan to help cool it down. In the morning on the first start up of the day they cars computer system does a self check on all important functions including the cat fan. it should do a self check with all 3 speeds ( low, med, high) then you should hear a relay click under the dash and the fan will shut off. All is normal operation. You just wont ever notice this fan when you are driving down the road because of other noises.
24 posts and only jwight provided the correct information with a reference to another thread that explained it further - and his was the third post which everyone else ignored.
24 posts and only jwight provided the correct information with a reference to another thread that explained it further - and his was the third post which everyone else ignored.
It is the catilayic converter fan. since the engine is in the rear there is not enough air circulation in the back on the cat. so they put a fan to help cool it down. In the morning on the first start up of the day they cars computer system does a self check on all important functions including the cat fan. it should do a self check with all 3 speeds ( low, med, high) then you should hear a relay click under the dash and the fan will shut off. All is normal operation. You just wont ever notice this fan when you are driving down the road because of other noises.
I assume this is a joke... so one more time:
There is no "3-speed cooling fan" for the catalytic converter on this car or any car. This is an electrically driven pump that injects air into the exhaust stream to help complete the combustion of excess fuel during rich mixture conditions (cold start-up), and as a result also helps the catalytic converter warm-up sooner and work more effectively. Many other cars have been fitted with similar smog air pumps since the 1970s, but they were belt-driven instead of electric/computer controlled.
I ordered some new keys earlier this month, and went in to the dealership today to get them programmed.
After waiting for almost an hour, someone came out and told me that one of the keys was programmed successfully, but when they tried to program the second key, the SAM control unit locked up...
Does anyone else keep a battery charger in the back of their smart? I drive it every day so, don't worry about the battery failing due to non-use. My 08 got the upgrade just before I bought it, however, I still suffer flashbacks to it not starting in the dealer lot when it had the old battery...
Even my mechanic doesn’t know! I recently failed my first required California smog check, and it had something to do with a CC, or the lack of one??
(UPDATE: I finally found out that there is indeed a small catalytic built into the muffler, after talking with my Canadian parts connection. I ❤️...
I just acquired an 02 cabrio. Its got 27k on it. It seems to be a G K conversion from what info I have attained. The local MB dealer cant help unless its an 08 or later. I had the starter rebuilt and was told there didn't seem to be anything wrong. I have had some real difficulty locating any...
Hey guys im having trouble with my car
I have a 2009
The car was running fine but A/c was not working and went to get it fixed , A/C guy said the a/c button/switch was not working and i told him just bypass it with wire and a toggle switch,, 2 days later he calls me and says the car...
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