Expansion Block - Orifice Tube

From: Jamie Calder (jcalder3@cfl.rr.com)
Date: Tue Jun 12 2007 - 14:05:51 EDT

For a '93 318 there are 2 options for an orifice tube. One is $3.88 and the
other is an "automatic adjusting orifice tube for normal climates (105
degrees)" for $24.94.

What is an auto adjusting orifice tube?

These can be replaced without replacing the entire expansion block? My
friends '97 Caravan was a one piece block/tube.

In what case would I need to replace the expansion block too?

Thanks,
James

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