Knock sensor or dealer copout? - Page 4

White00gt · 07-11-2011, 07:24 PM

Confucius say; the tech should have found the bad muffler bearing a long time ago....

seriously, I'm not feeling like the dealership is going to warranty your actual issue if they ever actually do find it. So I would take it to somebody more performance oriented and get aftermarket go fast goodies vs stock stuff.

minytrker · 07-11-2011, 07:30 PM

With an aftermarket converter you can get false miss fires. I usually do a crank re-learn and also have to adjust miss-fire tables in the tune for vehicles with cam or after market stall.

PapaBear · 07-11-2011, 07:32 PM

Quote:

Originally Posted by minytrker

With an aftermarket converter you can get false miss fires. I usually do a crank re-learn and also have to adjust miss-fire tables in the tune for vehicles with cam or after market stall.

Does it regardless

chrisheltra · 07-11-2011, 07:34 PM

Quote:

Originally Posted by PapaBear

He did trans build, converter, longtubes with catless y pipe and plugs and wires.

I wouldn't even bother messing with the dealership. Ford would void the power train warranty in a heart beat if you brought in your vehicle to them with all these mods. No doubt you also have a tune on it?

minytrker · 07-11-2011, 07:39 PM

Quote:

Originally Posted by PapaBear

Did it with my tuned ECM as well as stock ECM.

Did your tuner do a crank re-learn after you installed the new pcm? Thats the first thing I do when I install a new pcm in something. I have seen crank re-learns fix some weird issues before.

PapaBear · 07-11-2011, 07:41 PM

Quote:

Originally Posted by chrisheltra

I wouldn't even bother messing with the dealership. Ford would void the power train warranty in a heart beat if you brought in your vehicle to them with all these mods. No doubt you also have a tune on it?

Truck is untuned at this point.

gearmesh, inc. · 07-12-2011, 12:53 PM

Crane makes a valve spring compressor tool you can use while the head is still on the block. Looks like it compresses both intake and exhaust valves at the same time for one cylinder.

http://www.summitracing.com/parts/CRN-99472-1/

PapaBear · 07-12-2011, 01:04 PM

Well, i'ts now 1PM and they haven't called me. Think that means it still won't run with stock plugs/wires?

PapaBear · 07-12-2011, 01:05 PM

Quote:

Originally Posted by gearmesh, inc.

Crane makes a valve spring compressor tool you can use while the head is still on the block. Looks like it compresses both intake and exhaust valves at the same time for one cylinder.

http://www.summitracing.com/parts/CRN-99472-1/

That little friggin thing costs $114.95? WTF? I'm in the wrong business.

And Gerald, does that mean that you concur on our diagnosis of valve train and not ignition?

csikx · 07-12-2011, 01:16 PM

Maybe it is just a coincidence, but this is why I'm afraid to tune my car, or add some other parts.

1998ta__1991rs · 07-12-2011, 01:31 PM

Quote:

Originally Posted by csikx

Maybe it is just a coincidence, but this is why I'm afraid to tune my car, or add some other parts.

get a good local tuner (JP) that is willing to help you out and there isnt an issue

1998ta__1991rs · 07-12-2011, 01:32 PM

tell them to do a crank relearn (has to be done with efilive or a tech 2) and see if it fixes the problem

PapaBear · 07-12-2011, 02:00 PM

Quote:

Originally Posted by 1998ta__1991rs

tell them to do a crank relearn (has to be done with efilive or a tech 2) and see if it fixes the problem

That's why I took it to them, man. They're the professionals. What do I know, right?

I suggested it yesterday, and he said he did it. We'll see I guess.

White00gt · 07-12-2011, 03:55 PM

Quote:

Originally Posted by PapaBear

They're the professionals.

From what I've been reading in this thread, the above statement along with many other are incorrect.

PapaBear · 07-12-2011, 04:28 PM

430 and not one phone call all day. Hmmmmm......

LXtasy · 07-12-2011, 04:47 PM

does your phone make calls too or just receive them? If it can make a call out than call them and check. Don't wait around for them to call

gearmesh, inc. · 07-12-2011, 04:52 PM

Quote:

Originally Posted by PapaBear

That little friggin thing costs $114.95? WTF? I'm in the wrong business.

And Gerald, does that mean that you concur on our diagnosis of valve train and not ignition?

The cost of the tool will be chump change compared to what Hendrick will probably end up charging you for chasing ghosts on their end. I believe JP has one of those tools that can be borrowed for a minor fee to keep from purchasing one outright.

Valvetrain is about the only area left to dig into other than unplugging the knock sensors via the plug at the rear of the intake and going for a ride. Unplugging the knock sensors will back the timing up some, but still leave enough to twist up to the top of the tach.

It isn't all that bad to get a valve cover off. It just looks intimidating with the coil pack rack and heater hoses run across the top. Its probably just as hard to get the rear plug out to put an air line to it to hold the valves up.

1 Slow Z · 07-12-2011, 05:17 PM

Rob (MonteC) might lent you rent his spring compressor.

bambooi · 07-12-2011, 06:00 PM

I bought the right tool made by rsi(i think) for the ls engines when I did my z06 spring swap. You will be hurting if you get a cheap one. The right tool for the job makes things so simple.

98Camarod · 07-12-2011, 06:20 PM

What size converter? I had to have my misfire tables adjusted because it was breaking up at 4500 rpm

07-11-2011, 07:24 PM	#61
White00gt Senior Member Join Date: May 2010 Location: PI, S.C. Posts: 565	Confucius say; the tech should have found the bad muffler bearing a long time ago.... seriously, I'm not feeling like the dealership is going to warranty your actual issue if they ever actually do find it. So I would take it to somebody more performance oriented and get aftermarket go fast goodies vs stock stuff. __________________ M. Ragland . Dropbox sign up link +space http://db.tt/9sBmLpl

07-11-2011, 07:30 PM	#62
minytrker Senior Member Join Date: May 2008 Posts: 1,089	With an aftermarket converter you can get false miss fires. I usually do a crank re-learn and also have to adjust miss-fire tables in the tune for vehicles with cam or after market stall. __________________ 1999 Z28 Camaro\|Cut up 2003 CC Duramax Dually\|19.5 w/245/70/19.5\|5in exhaust 2009 G8 GT 408hp/402tq sae\|Rotofab CAI\|LS9 Cam\|Headers\|GXP Mufflers\|Custom System 2009 Tahoe stock

07-12-2011, 12:53 PM	#67
gearmesh, inc. creepy azz cracka Join Date: Nov 2008 Location: Summerville Posts: 1,587	Crane makes a valve spring compressor tool you can use while the head is still on the block. Looks like it compresses both intake and exhaust valves at the same time for one cylinder. http://www.summitracing.com/parts/CRN-99472-1/ __________________ "I came into this world kicking, screaming,and covered in someone else's blood, I have no problem leaving the same way!" ÔÇ£If you carry a gun, people will call you paranoid. ThatÔÇÖs ridiculous. If I have a gun, what in the hell do I have to be paranoid about?ÔÇØ -Clint Smith, Thunder Ranch.

07-12-2011, 01:32 PM	#72
1998ta__1991rs Senior Member Join Date: Jun 2008 Location: West Ash Posts: 4,283	tell them to do a crank relearn (has to be done with efilive or a tech 2) and see if it fixes the problem __________________ Funny

07-12-2011, 04:47 PM	#76
LXtasy Senior Member Join Date: Dec 2006 Location: Summerville, SC Posts: 9,564	does your phone make calls too or just receive them? If it can make a call out than call them and check. Don't wait around for them to call __________________

07-12-2011, 01:04 PM	#68
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	Well, i'ts now 1PM and they haven't called me. Think that means it still won't run with stock plugs/wires?

07-12-2011, 01:16 PM	#70
csikx Senior Member Join Date: Feb 2011 Posts: 1,398	Maybe it is just a coincidence, but this is why I'm afraid to tune my car, or add some other parts.

07-12-2011, 04:28 PM	#75
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	430 and not one phone call all day. Hmmmmm......

07-12-2011, 05:17 PM	#78
1 Slow Z Senior Member Join Date: Apr 2007 Location: The end of the rainbow! Posts: 968	Rob (MonteC) might lent you rent his spring compressor.

07-12-2011, 06:00 PM	#79
bambooi Senior Member Join Date: Apr 2009 Posts: 1,324	I bought the right tool made by rsi(i think) for the ls engines when I did my z06 spring swap. You will be hurting if you get a cheap one. The right tool for the job makes things so simple.

07-12-2011, 06:20 PM	#80
98Camarod Senior Member Join Date: Mar 2009 Location: Summerville, SC Posts: 1,525	What size converter? I had to have my misfire tables adjusted because it was breaking up at 4500 rpm