Po4FB code
Thread Starter
|
New Member
Joined: Jan 2026
Posts: 4
From: Ardsley New York
Po4FB code
Hello, my check engine light came on, a P04FB code I replaced the engine crankcase pressure sensor, on initial drive light was still on, reduced engine power was still active and fan stayed on after I shut car down , made appointment to bring my car to dealer. Decided to take truck down to store , check engine light was still on by the reduced engine power went away and the fan didn’t stay on after I turned car off. Does it just take some time to clear out the codes? Gonna try again in morning
Moderator
Joined: Oct 2014
Posts: 4,334
From: North Central Indiana
Hello, my check engine light came on, a P04FB code I replaced the engine crankcase pressure sensor, on initial drive light was still on, reduced engine power was still active and fan stayed on after I shut car down , made appointment to bring my car to dealer. Decided to take truck down to store , check engine light was still on by the reduced engine power went away and the fan didn’t stay on after I turned car off. Does it just take some time to clear out the codes? Gonna try again in morning
https://www.tsbsearch.com/Chevrolet/PIP5841A
Thread
Thread Starter
Forum
Replies
Last Post
TheSaint
2nd Generation S-series (1995-2005) Tech
4
May 24, 2017 12:06 AM
mk123
2nd Generation S-series (1995-2005) Tech
8
Jan 6, 2015 01:35 PM
oktain
Engine & Transmission
6
Sep 24, 2009 01:52 PM
