Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Lptexastornado1

2006 23 LSV Hard Start Monsoon 340

Recommended Posts

Lptexastornado1

Actually according to this table I found on Bakes (a link posted in another thread here took me to Bakes table). It says I should be 58-60psi on key up and running so maybe my problem is key up I’m low? If that’s it would that be regulator or fuel pump?

But I’m not 100% sure I can trust the chart below reason being is I know my engine is TBW and doesn’t have a IAC like the 05 do. So I am a little stumped on what it truly should be. 

AC24DD33-974D-4076-91EA-088A19228E3A.jpeg

Share this post


Link to post
Share on other sites
justgary

Sorry for leading you astray.  That looks like the correct value to use.

It's surprising that you have low pressure before the engine starts, but that could well be the issue.  It's worth checking all of the electrical connections that are involved, including:

- Disconnect, clean, and very gently spread the connectors in the Cannon plug near the ECM on the engine.  It should be a round rubberized connector with a hose clamp on it.

- Clean the engine grounds at the ends of both engine heads

- Clean the connector at the fuel pump

- Find the fuel pump relay, clean the connector, and maybe consider swapping the relay with one of the other two identical ones.

- Check the connections to the key switch to make sure you have full voltage starting from there.

Also, I think I read that you have a mechanical fuel regulator instead of a vacuum operated one.  If none of the above things helps, maybe consider gently tapping on the regulator body with a screwdriver handle to jar the springs and parts into a slightly different alignment.  If that changes anything, it could be time for a new regulator.

 

Share this post


Link to post
Share on other sites
Lptexastornado1

Well I’m back to the drawing board for this issue. Same as last year. To review the posts before to this point I have replaced the Spark Plugs, Spark Plug Wires, Cap and Rotar, ignition coil and Ignition Control Module and pulled the ECM and had it re flashed to make sure it was up to date on everything.  I have also pulled the plenum and cleaned the Throttle Body and cleaned the Flame Arestor / air filter. 
 

I have started it a handful of times this winter and it Starts fairly easy when cold. Took it out Saturday after getting the ECM back and same problem drove it for 30 min for a sunset cruise with the family. Shut it down and star gazed for 30 min and then wouldn’t start with just turning the key. Tried advancing the throttle and wouldn’t start. Turned the key to off for 2 min then fired right up when I advanced the throttle on the first try. After the 2 min wait. 
 

dropped the wife and younger kids off close to the house then drove it 20 min to the boat ramp turned it off at the boat ramp for 3 min while I backed the trailer in and then it fired right up on the first key up. 
 

I don’t know if it is needing more fuel to start or getting to much fuel. Heck I’m stumped maybe it’s something not even related to fuel. 
 

things I continue to wonder if they could be the problem

fuel pump (but it runs good and fuel psi is rock solid when running but was only 50psi and dropped to 48 with key on engine off)

Coolant temp sensor (due to it starting always when cold and not always when hot)

crank position sensor (maybe it is going bad and when engine warms affect the sensor)

but the sensors don't answer why advancing the throttle Helps it start?

 

any other ideas ?
 

couple pictures from a fun night out once I tried to stop worrying about this starting problem 🤦‍♂️

6B4A6ACB-D994-489B-B2C9-B8CD59733B72.jpeg

9F4045A9-ADC6-4F84-B4E6-CC47C8EC34BD.jpeg

Share this post


Link to post
Share on other sites
formulaben
1 hour ago, Lptexastornado1 said:

Shut it down and star gazed for 30 min and then wouldn’t start with just turning the key. Tried advancing the throttle and wouldn’t start. Turned the key to off for 2 min then fired right up when I advanced the throttle on the first try. After the 2 min wait. 

When you say it wouldn't start, did it crank or nothing at all?

Share this post


Link to post
Share on other sites
Lptexastornado1

Ya cranks hard but won’t fire up. Same as the video on the first page of the thread, cranks cranks cranks just wont fire up. 

Share this post


Link to post
Share on other sites
JasonK

Pull a plug and check for spark. If spark is weak or erratic, replace your cap again. We've had to replace the cap many times on chevy suburbans. It's a known problem.

Share this post


Link to post
Share on other sites
Lptexastornado1

Does anyone know for sure what happens to the system when engine is off and you advance the Throttle?  Is it true that doing that it opens the TB to allow more air flow but does not give the engine more gas? 
 

if that’s the case then I wonder what is controlling the air flow on key up throttle in neutral?
 

Maybe that’s my problem or maybe I’m flooding my engine slightly when I shut the engine off ( maybe the injectors are leaking??)  and it needs more air to over come the extra gas?  
 

the troubling part is it is not consistent.
 

if those thoughts above Don’t make sense feel free to shoot them down.   

Share this post


Link to post
Share on other sites
shawndoggy

Totally try the third battery right to the starter thing.  LOL you have totally taken a dive down the same hole I did with our 06 vride.  Marital harmony demands that the boat start when your wife turns the key.  Been there.  We were about ready to give the boat away.

Share this post


Link to post
Share on other sites
tvano

mechanical throttle linkage or did '06 move to drive by wire?

mechanical throttle linkage will open the throttle body (regardless of ign) when throttle lever is advanced.

Share this post


Link to post
Share on other sites
shawndoggy

@Lptexastornado1 have you verified the size of the wire from the batteries to the starter?  Is it 2awg or 00awg?

Share this post


Link to post
Share on other sites
Lptexastornado1

I haven’t verified but will look at it tonight or in the morning. Hopefully it’s labeled clearly on the wire. 
 

sitting at my boys basketball practice hoping I have 2awg wire and this is the fix!!!

Edited by Lptexastornado1

Share this post


Link to post
Share on other sites
Lptexastornado1

Well just looked at the wire and it is 2awg.
 

@shawndoggy Do I  hook up the third battery stacked straight to the starter without our taking the 2awg wire off? Or take the original 2awg wire off and then hook the battery straight to it?

hope this is it. It will be a straight forward fix!

Share this post


Link to post
Share on other sites
shawndoggy

You need the other wire on there too to power stuff at the helm. 
 

2awg is smaller than 00awg. Malibu uses 00 now. 

Share this post


Link to post
Share on other sites
Lptexastornado1

BOOM!!!!!! This is the Fix!!!!!  I’m so excited!!! I have been chasing this since last memorial day right after I bought the boat!!!

 

@shawndoggy Thank you very much for figuring this out 10 yrs ago =). 
 

did you put 0awg positive and neg wire in or double up on the 2 awg?  
 

also all of my cables everywhere are 2awg. Did you just replace the positive and negative cable from my starter goes to the perko?  I would think I also need to replace the cable from the perko to the battery but not worry about the cable going to dash/ fuses ?

Share this post


Link to post
Share on other sites
shawndoggy

What I *did* back then was a second parallel run of 2awg from the starter and the block to the observer's compartment.  What I think I *would do* now is to remove the 2awg between the starter/block and the observer's compartment, along with it's 14 year old lugs and possible corrosion, and run brand new 00awg.  It's the more expensive route, but it's (a) cleaner, and (b) less prone to failure in the future (if there's already some resistance on your existing 2awg run, doubling up only "kinda fixes" the problem, plus stacking lugs is introducing another potential point of failure).

Me personally -- I wouldn't worry about rewiring anything on the other side of your battery switch.  It's probably fine.

EDIT -- glad this is the fix... you'll know it's really the fix when you reach for the key and don't say a little hail mary first.

Edited by shawndoggy

Share this post


Link to post
Share on other sites
hawaiianstyln

I removed all my 2awg when I upgraded the Alt and now everything is 00.  So happy I did this.  Is the 00 from Alt to my starter overkill, yah maybe but having 00 ran all thru my boat including my parallel wiring of the 5 batteries, well worth it to me.  It wasn't cheap either

Share this post


Link to post
Share on other sites
shawndoggy

Yeah the alt to starter run is like 10awg or something right?  Seems like at least a reasonable place to repurpose a center section piece of the pulled 2awg.

Share this post


Link to post
Share on other sites
Lptexastornado1

00awg it is! 
 

thanks again!!!

Share this post


Link to post
Share on other sites
shawndoggy

genuinedealz.com is a great resource for wire, and they will also install lugs for you.  I'm kinda 50/50 on whether to have them do the lugs or do it yourself.  If they do it, you better measure right, and you'll probably have wire that's a tad too long (hard to know exactly how the wire is going to radius around corners and such).  Vs if you do your own, you can cut the wire exactly how you want it (not too short, not too long).  I would def get some legit lug crimpers if you go DIY (not that janky slam it with a hammer thing).  There are pretty good chinese hydraulic ones on amazon (probably not a tool for a lifetime, but good enough to lay down some good crimps for a project like this).  I have this style: https://www.amazon.com/WBHome-Hydraulic-Crimper-Terminal-Crimping/dp/B0811VYCQ6/ref=asc_df_B0811VYCQ6/?tag=hyprod-20&linkCode=df0&hvadid=385124930314&hvpos=1o1&hvnetw=g&hvrand=5995553810954264254&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1022653&hvtargid=pla-844311887891&psc=1&tag=&ref=&adgrpid=80210700684&hvpone=&hvptwo=&hvadid=385124930314&hvpos=1o1&hvnetw=g&hvrand=5995553810954264254&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1022653&hvtargid=pla-844311887891

It has started to leak a little now, but I've probably done 100 crimps with it.  The crimps it produces are top notch.  Also be sure to use tinned lugs.

Share this post


Link to post
Share on other sites
Lptexastornado1

i like the idea of them putting the lugs on and having a little extra length. That wouldn’t hurt my feelings =)

Share this post


Link to post
Share on other sites
formulaben

@Lptexastornado1, having completely gone through my electrical 2 years ago I can say that this was a wise investment and probably paid for itself when making numerous custom sized cables (due to the cost of extra cable.)

https://www.harborfreight.com/hydraulic-wire-crimping-tool-66150.html

Share this post


Link to post
Share on other sites
hawaiianstyln
17 hours ago, formulaben said:

@Lptexastornado1, having completely gone through my electrical 2 years ago I can say that this was a wise investment and probably paid for itself when making numerous custom sized cables (due to the cost of extra cable.)

https://www.harborfreight.com/hydraulic-wire-crimping-tool-66150.html

that is exactly what I bought and works great!

Share this post


Link to post
Share on other sites
Lptexastornado1

Just a final write up. Purchased 00 awg wire and replaced the 2awg wire. Took the boat out today and it ran and started like a dream. 
 

Extremely happy I found this fix on the forum or else I would have been replacing parts that didn’t need to be replaced!!

 

thanks again @shawndoggy

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...