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Old 03-28-2008, 11:57 PM
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Join Date: Mar 2008
Posts: 69
Long warm-up time on '85 380se

Hi guys,

I did a lot of searching about smog pumps after finding that mine has died via the clutch seizing up.

So I see that the consensus on the smog pump is its useless after the car has warmed up. However, I gather from the responses to other posts that the rate of warmup is entirely dependent upon the smog pump injecting extra air into the combustion system.

My question is, could my long warm-up times be caused by a dead smog pump? It seems that I have to be driving long distances for the car to reach a temperature equilibrium, otherwise it drops down to 80 C or so and jumps at idle up to 90 C and then down again when in normal traffic or plain idling.

Thanks for your input,

-Troy

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Old 03-29-2008, 12:34 AM
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Location: Rockville MD
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My smog pump is disconnected, and the car warms up within 5 minutes. Check you thermostat, and if you replace it make sure its a good quality.
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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma
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Old 03-29-2008, 05:24 AM
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>>

The AIR system pumps air into the exhaust ports to rapidly heat the CAT before closed loop is attained to help control emmissions.

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