Jump to content
JustinLCurrie

Major Timing/Backfire around 1,800 RPM - 2006 C4 Avalanche

Recommended Posts

Been having issues with boat for 18 months now (owned for 5 years) and have spent $10K at boat mechanics/dealers (new CPU, new top end, new cap/coils, various sensors) and still not working.  Always starts and no issues at idle.  When under load around 7 mph/1,800-2,000 rpm starts to misfire badly and will repeatedly do this - very heavy timing/misfiring when bumping up against this rev range.  Sometimes it will get through the issue after 15 -30 minutes of trolling and trying to get on plane - seems like it just catches and timing issue goes away - maybe crazy but it seems that if water is rougher or going over wake it allows it to catch more easily.  Once through the issue will  run absolutely perfectly until stopped.  Very rarely (but usually when been out on a bouy it will start and run just fine immediately but after 2 minutes then goes into limp mode and then the same issue happens.) Local dealer/mechanics are stumped - (Vancouver, Canada) - and I don't have a limitless budget.  Basically we have nice looking floating slow moving island/tanning bed but no surfing.

Really want to get this sorted out. Still love the boat and wave when it works so would love to figure out what the issue is.  Have the time this off-season to investigate issues. 

Wondering if this could be related to fuel pump/corroded wires? Other ideas or suggestions would be welcome? 

2006 Avalanche C4 Storm Series 

New core put in 2017

Approx. 300 hours on boat 

Share this post


Link to post
Share on other sites
jtryon    24

black scorpion 330?  are you getting good constant 14.2-14.3 voltage with the motor running?  have you checked the fuel pressure?

there are two fuel pumps from what i hear, one in the tank and one at the rear port side of the motor (black scorpion anyway) near the raw water pump.  i'm assuming you've done the easy stuff first like fuel filter, plugs and wires since you also did the cap and rotor?  if not i'd do all that as well as the IAC valve and maybe the CPS.

Edited by jtryon

Share this post


Link to post
Share on other sites
beau t    8

Have the injectors been cleaned or replaced, do all of the spark  plugs look the same as in is 1 black or a different shade than the rest. I didn't see anything listed about this above. with a car you can do a distribution test to check the injectors and should be able to do it with a marine engine to but i have not got to play with a computer that hooks up to marine engines to verify. this is just throwing out ideas since you have a long list above of stuff thats been done. Also can you free rev the motor and it not cut up?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Recent Status Updates

    • Papazu12  »  CrewAdmin

      +27630236059 Most Powerful Love Spells in USA, KINGSTONE,SOUTH AFRICA,EUROPU, ITAY,  DUBIA, Dubai -AUSTRALIA-ROMANIA-BULGARIA-MOROCCO-FIJI-HONDURAS-GREECE, LUXEMBOURG
      Love Spells That Work Fast ~Bring Back A Lost Love 24 Hours.Bring back a lost love 24 hours: love spell that work fast bringing back a lost love is very true. Why not restore your broken relationship if you still burning inside with same old love you had for each other this spell is designed to fix all your love issues.Stop acting though like you will heal your broken heart and cast a spell to bring back your lost love within 24 hours. This spell works no matter how long you have been parted ways with your partner. White magic love spells that work in the united kingdom Instant love spells to bring back your ex partner in the usa Marriage love spells that work for a good marriage Fastest love spells to reunite with your ex-lover Family reunion love spells that work in Chicago Voodoo obedience love spells that work in the USA Effective marriage love spells that work instantly Effective love spells that work for marriage. Lost Love Spells That Work Fast Call +27630236059 Powerful Love Spells For Lovers to bring there lost lovers Back in Zambia -Swaziland- Ohio -Nevada -Port Elizabeth, Love spells magic that will help you apprehend your relationship problems discover your soul mate and make them fall in love with you with the help of MAMA ZUNGU. shop your marriage from divorce & make your relationship more potent restoration believe troubles & misunderstandings between fanatics and get lower back lost lover in just 48 hrs. love spells to opposite a breakup & shop your dating. Mis placed love spells to get your ex misplaced lover lower back completely & carry lower back lost love.heal relationship troubles the usage of love spells to boom love among people. love spells to banish intimacy & communique troubles in your courting. love spells to make a person fall in love with you attract a brand new lover stop your associate from dishonest on you & love spells to save you a divorce.misplaced love spells to completely get your ex husband again or ex spouse lower back. lost love spells to completely get your ex boyfriend or ex female friend returned.love spells chants to bolster a courting. chant these spiritually endowed words & wipe away your dating & marriage troubles. love spells chants that will help you locate love; make someone fall in love with you & get your ex returned. love spells chant to heal dating & marriage problems. Powerful Lost Love Spells Call On +27630236059  Bring back lost lover USING MAGIC LOVE spells In Italy -UK -USA- Singapore- Oman -Bahrain -London- Ireland -wales -Austria, My bring back lost lover spells will connect you and your lover with binding love spells. Enabling you to resolve all the issues.If you met a special someone who had a big impact on your life but lost their love. Mama Zungu has lost lover spells to reunite you with love.Be blessed with the love of that special someone who left a mark in your life. If you want to taste the powerful love of a lost lover who made you fall deeply in love & you find yourself wanting more of their love after a breakup or divorce then my bring back lost love spells can be of assistance to your situation.b Maybe your ex-lover wants nothing to do with you again, bring back lost love spells will help them forgive you or each of you to forgive each other of past wrongs & make you fall back in love with each other & enable you to restart a successful love relationship. Return lost love spells,For those who can move on, for those who can’t seem to forget that special lover from the past, for those who want to reconnect with an ex-lover, for those who want that one person who understood them & loved them like noon else.                                                                                                                                                  CALL/WHATSAPP; +27630236059
      EMAIL; papandmamazungu@gmail.com
      · 0 replies
    • Papazu12  »  CrewAdmin

      +27630236059 Most Powerful Love Spells in USA, KINGSTONE,SOUTH AFRICA,EUROPU, ITAY,  DUBIA, Dubai -AUSTRALIA-ROMANIA-BULGARIA-MOROCCO-FIJI-HONDURAS-GREECE, LUXEMBOURG
      Love Spells That Work Fast ~Bring Back A Lost Love 24 Hours.Bring back a lost love 24 hours: love spell that work fast bringing back a lost love is very true. Why not restore your broken relationship if you still burning inside with same old love you had for each other this spell is designed to fix all your love issues.Stop acting though like you will heal your broken heart and cast a spell to bring back your lost love within 24 hours. This spell works no matter how long you have been parted ways with your partner. White magic love spells that work in the united kingdom Instant love spells to bring back your ex partner in the usa Marriage love spells that work for a good marriage Fastest love spells to reunite with your ex-lover Family reunion love spells that work in Chicago Voodoo obedience love spells that work in the USA Effective marriage love spells that work instantly Effective love spells that work for marriage. Lost Love Spells That Work Fast Call +27630236059 Powerful Love Spells For Lovers to bring there lost lovers Back in Zambia -Swaziland- Ohio -Nevada -Port Elizabeth, Love spells magic that will help you apprehend your relationship problems discover your soul mate and make them fall in love with you with the help of MAMA ZUNGU. shop your marriage from divorce & make your relationship more potent restoration believe troubles & misunderstandings between fanatics and get lower back lost lover in just 48 hrs. love spells to opposite a breakup & shop your dating. Mis placed love spells to get your ex misplaced lover lower back completely & carry lower back lost love.heal relationship troubles the usage of love spells to boom love among people. love spells to banish intimacy & communique troubles in your courting. love spells to make a person fall in love with you attract a brand new lover stop your associate from dishonest on you & love spells to save you a divorce.misplaced love spells to completely get your ex husband again or ex spouse lower back. lost love spells to completely get your ex boyfriend or ex female friend returned.love spells chants to bolster a courting. chant these spiritually endowed words & wipe away your dating & marriage troubles. love spells chants that will help you locate love; make someone fall in love with you & get your ex returned. love spells chant to heal dating & marriage problems. Powerful Lost Love Spells Call On +27630236059  Bring back lost lover USING MAGIC LOVE spells In Italy -UK -USA- Singapore- Oman -Bahrain -London- Ireland -wales -Austria, My bring back lost lover spells will connect you and your lover with binding love spells. Enabling you to resolve all the issues.If you met a special someone who had a big impact on your life but lost their love. Mama Zungu has lost lover spells to reunite you with love.Be blessed with the love of that special someone who left a mark in your life. If you want to taste the powerful love of a lost lover who made you fall deeply in love & you find yourself wanting more of their love after a breakup or divorce then my bring back lost love spells can be of assistance to your situation.b Maybe your ex-lover wants nothing to do with you again, bring back lost love spells will help them forgive you or each of you to forgive each other of past wrongs & make you fall back in love with each other & enable you to restart a successful love relationship. Return lost love spells,For those who can move on, for those who can’t seem to forget that special lover from the past, for those who want to reconnect with an ex-lover, for those who want that one person who understood them & loved them like noon else.                                                                                                                                                  CALL/WHATSAPP; +27630236059
      EMAIL; papandmamazungu@gmail.com
      · 0 replies
    • Papazu12  »  CrewAdmin

      +27630236059 Most Powerful Love Spells in USA, KINGSTONE,SOUTH AFRICA,EUROPU, ITAY,  DUBIA, Dubai -AUSTRALIA-ROMANIA-BULGARIA-MOROCCO-FIJI-HONDURAS-GREECE, LUXEMBOURG
      Love Spells That Work Fast ~Bring Back A Lost Love 24 Hours.Bring back a lost love 24 hours: love spell that work fast bringing back a lost love is very true. Why not restore your broken relationship if you still burning inside with same old love you had for each other this spell is designed to fix all your love issues.Stop acting though like you will heal your broken heart and cast a spell to bring back your lost love within 24 hours. This spell works no matter how long you have been parted ways with your partner. White magic love spells that work in the united kingdom Instant love spells to bring back your ex partner in the usa Marriage love spells that work for a good marriage Fastest love spells to reunite with your ex-lover Family reunion love spells that work in Chicago Voodoo obedience love spells that work in the USA Effective marriage love spells that work instantly Effective love spells that work for marriage. Lost Love Spells That Work Fast Call +27630236059 Powerful Love Spells For Lovers to bring there lost lovers Back in Zambia -Swaziland- Ohio -Nevada -Port Elizabeth, Love spells magic that will help you apprehend your relationship problems discover your soul mate and make them fall in love with you with the help of MAMA ZUNGU. shop your marriage from divorce & make your relationship more potent restoration believe troubles & misunderstandings between fanatics and get lower back lost lover in just 48 hrs. love spells to opposite a breakup & shop your dating. Mis placed love spells to get your ex misplaced lover lower back completely & carry lower back lost love.heal relationship troubles the usage of love spells to boom love among people. love spells to banish intimacy & communique troubles in your courting. love spells to make a person fall in love with you attract a brand new lover stop your associate from dishonest on you & love spells to save you a divorce.misplaced love spells to completely get your ex husband again or ex spouse lower back. lost love spells to completely get your ex boyfriend or ex female friend returned.love spells chants to bolster a courting. chant these spiritually endowed words & wipe away your dating & marriage troubles. love spells chants that will help you locate love; make someone fall in love with you & get your ex returned. love spells chant to heal dating & marriage problems. Powerful Lost Love Spells Call On +27630236059  Bring back lost lover USING MAGIC LOVE spells In Italy -UK -USA- Singapore- Oman -Bahrain -London- Ireland -wales -Austria, My bring back lost lover spells will connect you and your lover with binding love spells. Enabling you to resolve all the issues.If you met a special someone who had a big impact on your life but lost their love. Mama Zungu has lost lover spells to reunite you with love.Be blessed with the love of that special someone who left a mark in your life. If you want to taste the powerful love of a lost lover who made you fall deeply in love & you find yourself wanting more of their love after a breakup or divorce then my bring back lost love spells can be of assistance to your situation.b Maybe your ex-lover wants nothing to do with you again, bring back lost love spells will help them forgive you or each of you to forgive each other of past wrongs & make you fall back in love with each other & enable you to restart a successful love relationship. Return lost love spells,For those who can move on, for those who can’t seem to forget that special lover from the past, for those who want to reconnect with an ex-lover, for those who want that one person who understood them & loved them like noon else.                                                                                                                                                  CALL/WHATSAPP; +27630236059
      EMAIL; papandmamazungu@gmail.com

      · 0 replies
    • Edward  »  lamb80782

      I see Lamb80782 had the same remove the driver seat as I am having.
      I didn't see the ulitmate solution.  I think removing "stop" would be the solution but am unable to see very well under the seat.  Has anyone come up with the solution?
      I also am reoving to have re-uphostered.  Itried removing the black access cover but it is very tight under there and not enough room for a regular wrench.  May try a 1/4 rachet drive.
      https://photos.app.goo.gl/S37erPn8an8fDkHBA of seat.
      · 0 replies
    • Smcclellan  »  InfinitySurf

      Good morning. I saw you talked about replacing the ram fill valves. I have a 2021 ri237 with a broken valve   It’s under warranty but dealer is going to be very slow to fix it.  Which wiring harness do I need to make sure I have  when I order off of Amazon.  Thank you scott 
      · 0 replies
    • Benji  »  Dreamer

      Roswell Bimini for sale. New condition. It’s off of a new ri245. Great low price! Please reply to chat!
      Benji
      · 1 reply
  • Topics

  • Popular Contributors

    Nobody has received reputation this week.

×

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy..