Need troubleshooting help... - Page 2

coupe · 01-05-2006, 12:53 PM

Okay. It's got to be something simple: When car's cold (let it start & run just enough to warm fluids), I can romp on it under load and it is perfect. No ping. Once it gets to operating temp on the water-temp gauge, it is no longer safe to put the TPS past about 1/4 under any load...in any gear. I'm putting a CTS and ACT on tonite.

jwillburn119 · 01-06-2006, 06:51 AM

well cold air is more dense... which would cause it too detonate if the gas wasnt good... say the station where you got the last tank of gas is cutting corners... adding 87 to 93... something like that? have you refueled the car yet?

TheJeanyus · 01-06-2006, 07:40 AM

Quote:

Originally Posted by jwillburn119

well cold air is more dense... which would cause it too detonate if the gas wasnt good... say the station where you got the last tank of gas is cutting corners... adding 87 to 93... something like that? have you refueled the car yet?

That wouldn't matter since he backed the timing way off and it was still pinging.

coupe · 01-06-2006, 08:47 AM

True. It is not timing so in goes a fuel pump and new filter.

Too bad I can't hook up my Weldon Pump yet.

It would blow the 24# injectors out the exhaust.

jwillburn119 · 01-06-2006, 02:34 PM

why dont you just replace everything?

streatleathul · 01-07-2006, 08:11 PM

Ck mass air flow for dust or trash

Shankin · 01-08-2006, 09:24 AM

1st i would check to see if the balancer has spun causing you to think there is 10 degrees and there is actually around 20 or so.

93Cobra#2771 · 01-09-2006, 01:27 PM

First question:
Have you pulled the codes?

Second question:
Fuel pressure OK under load?

Third question?
What kind of condition is the motor itself? Burning oil? Etc?

coupe · 01-09-2006, 01:40 PM

aftermarket elastomer balancer.
1)no codes.
2)no gauge...but I need to check it for sure.
3)great. not a drop of oil. I'm thinking it is lean, since it's much worse when weather's cold...fuel pump will be replaced ASAP.

93Cobra#2771 · 01-09-2006, 02:13 PM

If it makes you feel better, a buddy of mine broke the crank on his motor after suffering similar conditions for several months. Made for some cool pix, though.

Of course, he was burning oil like crazy, and I suspect he was having a lot of preignition from the heavy carbon deposits. He could hear the detonation, but didn't listen about taking it easy on it...

I suspect a fuel delivery issue. Fuel pump may be reducing fuel delivery once it gets heated up/has a decent load on it. Do you run it low on fuel a lot?

01-05-2006, 12:53 PM	#11
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Re: Need troubleshooting help... Okay. It's got to be something simple: When car's cold (let it start & run just enough to warm fluids), I can romp on it under load and it is perfect. No ping. Once it gets to operating temp on the water-temp gauge, it is no longer safe to put the TPS past about 1/4 under any load...in any gear. I'm putting a CTS and ACT on tonite. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

01-06-2006, 06:51 AM	#12
jwillburn119 Senior Member Join Date: May 2005 Location: temple, tx Posts: 240	Re: Need troubleshooting help... well cold air is more dense... which would cause it too detonate if the gas wasnt good... say the station where you got the last tank of gas is cutting corners... adding 87 to 93... something like that? have you refueled the car yet? __________________ Whats in your WALLET?

01-06-2006, 08:47 AM	#14
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Re: Need troubleshooting help... True. It is not timing so in goes a fuel pump and new filter. Too bad I can't hook up my Weldon Pump yet. It would blow the 24# injectors out the exhaust. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

01-06-2006, 02:34 PM	#15
jwillburn119 Senior Member Join Date: May 2005 Location: temple, tx Posts: 240	Re: Need troubleshooting help... why dont you just replace everything? __________________ Whats in your WALLET?

01-07-2006, 08:11 PM	#16
streatleathul Member Join Date: Oct 2005 Location: Dothan Al. Posts: 32	Re: Need troubleshooting help... Ck mass air flow for dust or trash __________________ streatleathul

01-08-2006, 09:24 AM	#17
Shankin Senior Member Join Date: Jul 2005 Posts: 339	Re: Need troubleshooting help... 1st i would check to see if the balancer has spun causing you to think there is 10 degrees and there is actually around 20 or so. __________________ Pro Speed Performance 770 222 5015

01-09-2006, 01:27 PM	#18
93Cobra#2771 The Kocky One Join Date: Dec 2004 Location: Yeah, but those cutters won't bust any walnuts.â„¢ Posts: 1,948	Re: Need troubleshooting help... First question: Have you pulled the codes? Second question: Fuel pressure OK under load? Third question? What kind of condition is the motor itself? Burning oil? Etc? __________________ *For Sale: Reproduction Window Stickers, 87+ Mustangs, Cobras, Lightnings, and HD F150!* Richard White 93 Cobra Kocky will be back!

01-09-2006, 01:40 PM	#19
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Re: Need troubleshooting help... aftermarket elastomer balancer. 1)no codes. 2)no gauge...but I need to check it for sure. 3)great. not a drop of oil. I'm thinking it is lean, since it's much worse when weather's cold...fuel pump will be replaced ASAP. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

01-09-2006, 02:13 PM	#20
93Cobra#2771 The Kocky One Join Date: Dec 2004 Location: Yeah, but those cutters won't bust any walnuts.â„¢ Posts: 1,948	Re: Need troubleshooting help... If it makes you feel better, a buddy of mine broke the crank on his motor after suffering similar conditions for several months. Made for some cool pix, though. Of course, he was burning oil like crazy, and I suspect he was having a lot of preignition from the heavy carbon deposits. He could hear the detonation, but didn't listen about taking it easy on it... I suspect a fuel delivery issue. Fuel pump may be reducing fuel delivery once it gets heated up/has a decent load on it. Do you run it low on fuel a lot? __________________ *For Sale: Reproduction Window Stickers, 87+ Mustangs, Cobras, Lightnings, and HD F150!* Richard White 93 Cobra Kocky will be back!