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  1. S

    P0506 (IAC) and a collapsed vacuum elbow

    thanks for the advice potroast- I just replaced the soft hose with radiator hose (#80400, trimmed down a bit) and ordered the IAC.
  2. S

    P0506 (IAC) and a collapsed vacuum elbow

    My '03 x sport (4.o sohc) started having rough starts after new battery was installed. Also noticed low rpm's and shuddering at idle. CEL P0506. Several threads here pointed to the IAC which I cleaned- With the plastic cover off, I noticed the 90 degree vacuum hose was collapsed as if the intake...
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