Code 542
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Code 542
I'm getting this 542 code. I know my second fuel pump is not working, i was wondering would this throw the 542 code. I've changed the relay well switched the relay around. It doesn't come on until I go down the street. Also my headlight dim real bad or if i turn the A/C on. I have a new Battery, does that sound like the voltage regulator.
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Boss F150
1987 - 1996 F150 & Larger F-Series Trucks
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Mar 13, 2009 04:48 PM
