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Old 02-02-2001, 01:49 PM
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Join Date: Dec 2000
Location: charlotte hall md.
Posts: 248
I am still learning the ins and outs on my 1980 450sl.Less than 50k The first time I start the car in the day,and start to pull away.I get some strange pinging type noises from under the hood.This happens only When the car is moving,and I give it a little extra gas.This only last a few minutes than all is fine.It will not make the noise if I am not moving.If I just give it a little gas at standstill no noise.Is this somehow emmissions related Help.Michael

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Old 02-02-2001, 10:17 PM
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Join Date: Apr 2000
Posts: 412
Could possibly be you smog pump. Mine makes a little noise at start upthen is gone. I have be told it is normal.
1990 190E 2.6
1996 Grand Voyager 3.3
1985 Mustang GT 5.0 5 SPD
1982 Suzuki GS 750T
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Old 02-03-2001, 10:30 AM
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Join Date: Dec 2000
Location: charlotte hall md.
Posts: 248
start up noise.

Thanks for trying to help.Mine does not have a smog pump.It is a tri catalyst with ox sensor.Again thanks

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