Jump to content

P0327 Knock Sensor bad. Do i need to replace?

falcom

By falcom
in Ask A GM Technician

Recommended Posts

falcom Enthusiast

falcom

Posted
Posted

2001 GMC Yukon 4.8

280k miles

Recently rebuilt heads.

Shows pending code P3027 and knock sensor bank 1 shows high resistance.

 

Sholuld I go to the work of pulling the manifold again or should I wait to see if it becomes a regular trouble code?

In other wodrs is it a critical problem?

Thanks

Dave

 

PS

Is bank 1 the front sensor?

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

Not a pro by any means so I'm just going to state my opinion.

 

Clear the code and see if it comes back. If it does, pull the manifold and inspect/replace both, since Murphy's law will dicate the day after you replace the one, the other will fail. That and I don't know which one is for which bank. From what I've read about on this forum, go ahead and pick up the new wiring harness for the sensors as well. If the sensors are failing to do their job and you continue to let you engine knock uncontrolled you could possibly damage your engine down the road.

 

Just a humble opinion.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,972
    Total Members
    8,960
    Most Online
    Whit.the.COB
    Newest Member
    Whit.the.COB
    Joined

  • Who's Online   1 Member, 0 Anonymous, 993 Guests (See full list)

  • Latest Articles

  • Posts

    • MikeBMW
      Installing tow mirrors

      By MikeBMW · Posted

      Yep! This should be a pin somewhere as @pgamboa really dives into all of this. Thanks for reposting the link!
    • Grumpy Bear
      TCM Tuning 6L80E

      By Grumpy Bear · Posted

      I did the new thermostat after doing a 'flip' for a year. Runs as cool one way as the other in the summer but in the winter there is a bit of a floor. Yellow with the new 70 C thermostat. My data over the life of the unit to date. Still need more cooler. Anyway that floor helped both winter fuel economy and shift quality in the winter. I found it a good balance.       
    • Grumpy Bear
      Food & Drink

      By Grumpy Bear · Posted

      Evan Williams Bottled in Bond   So pouring the last of a bottle of Evan Williams Black label last night I set off the the state store for a refill only to be denied the by an empty shelf. Rats.    What the did have was a bottle of Evan Williams Bottled in Bond. 100 proof. Hum, a few bucks more but a known distiller. Lets have a swing at it. ( I have before )    Cracked it open and pour a serving over ice. Hum.... more heat, yes. More alcohol naturally. But the barreling not the proof brings the taste and this one came up short.    Oh is was familiar but the heat ran the barrel over like a Peterbilt runs over a squirrel. Could use a heavier toasting of the oak me thinks or perhaps a longer barreling. Who knows. But what I can say is ice or a water back isn't the answer. What kills one kills them both. Sad. It is a pleasant drink....if you have little to compare it to.  
    • Grumpy Bear
      Bridgestone vs Goodyear tires?

      By Grumpy Bear · Posted

      I've had exactly one set of Bridgestone. Lasted five year and 125,000 miles and had I known better 15oK would have been a cake walk. I would have bought a like set had they not tripled in price since the first set. I removed them at said mileage with 5/32" remaining in dead even wear all four. They were fuel efficient, quite, comfortable and predictable.    Early on I got a very good alignment checked at least once a year, sometimes twice; kept the tires properly inflated, balanced and rotated. And I've found that many a tire issue can be avoided with great maintenance practices. Lot's of tire dealers will do rotation and balance (simple) for free for as long as you own the tire they sold you so no excuse not to.    Bead prep, alloy integrity and stem health have a huge impact on inflation stability. There are more mountings done poorly that perfectly. Finding a good tire guy is gold and as important as finding a tire you like.    That 3X price increase now two sets of "other tires' later is starting look like a bargain.      Bad maintenance kills more tires than bad tires. 
    • Grumpy Bear
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Grumpy Bear · Posted

      Atlas, you kill me As aggravating as a project like this can be you have been unable to hide your fascination with learning and using that angst against this beast like a Ninjitsu Master. It amuses you, admit it now.      BTW, love your writing style. 😉       

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...