Carbon Fouling and Smoke - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 09-18-2013, 03:48 PM   #1
Registered Member

Regular
 
Ubnbit's Avatar
 
Join Date: Jan 2013
Location: Tazewell
Region: Tennessee
Posts: 3,532
Carbon Fouling and Smoke

Not my car but a 93 5.0.

Ok so what all can make it happen? I thought maybe a cooler plug would help with less gap but it will barely idle and will run in first gear pretty strong. It will not run in second gear. Cuts out and dies.

What could it be? No water in the oil.
__________________
Tint, louvers, Shelby brake light cover, sequentials, brake vent ring delete, Shorty antenna, JLT cold air intake, BAMA tune, VMP 2.5 S/C pulley, Ford racing shifter, MRT OR-H, SLP loudmouths, BMR adj PHB, BMR LCA, Eibach Pro-Kit, cobra jet big oval TB.
Ubnbit is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-18-2013, 04:43 PM   #2
Registered Member

Regular
 
Ubnbit's Avatar
 
Join Date: Jan 2013
Location: Tazewell
Region: Tennessee
Posts: 3,532
Nobody?
__________________
Tint, louvers, Shelby brake light cover, sequentials, brake vent ring delete, Shorty antenna, JLT cold air intake, BAMA tune, VMP 2.5 S/C pulley, Ford racing shifter, MRT OR-H, SLP loudmouths, BMR adj PHB, BMR LCA, Eibach Pro-Kit, cobra jet big oval TB.
Ubnbit is offline   Reply With Quote
Old 09-18-2013, 04:52 PM   #3
Registered Member
Regular
 
Mystic96's Avatar
 
Join Date: Oct 2012
Location: KC
Region: Missouri
Posts: 161
Fuel system?
Mystic96 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-18-2013, 04:56 PM   #4
Registered Member

Regular
 
Ubnbit's Avatar
 
Join Date: Jan 2013
Location: Tazewell
Region: Tennessee
Posts: 3,532
Changed the maf. Thought that might be it too. Has a cai of course.

I was thinking maybe compression test?

---------- Post added at 05:56 PM ---------- Previous post was at 05:54 PM ----------

Maybe burnt rings, or cooked cylinder walls.

Lol. Maybe it's just something simple. We r out of ideas lol. It would be better to dive in and know what u r looking for than to keep guessing.
__________________
Tint, louvers, Shelby brake light cover, sequentials, brake vent ring delete, Shorty antenna, JLT cold air intake, BAMA tune, VMP 2.5 S/C pulley, Ford racing shifter, MRT OR-H, SLP loudmouths, BMR adj PHB, BMR LCA, Eibach Pro-Kit, cobra jet big oval TB.
Ubnbit is offline   Reply With Quote
Old 09-18-2013, 04:56 PM   #5
Registered Member
Regular
 
Mystic96's Avatar
 
Join Date: Oct 2012
Location: KC
Region: Missouri
Posts: 161
Strong in first gear but dies in others did they have clutch safety switches that year? Doesn't sound like motor maybe electronics or a sensor or something telling it to shut off at the wrong time?
Mystic96 is offline   Reply With Quote
Old 09-18-2013, 05:08 PM   #6
Registered Member

Regular
 
Ubnbit's Avatar
 
Join Date: Jan 2013
Location: Tazewell
Region: Tennessee
Posts: 3,532
It's efi. The timing has been set.
__________________
Tint, louvers, Shelby brake light cover, sequentials, brake vent ring delete, Shorty antenna, JLT cold air intake, BAMA tune, VMP 2.5 S/C pulley, Ford racing shifter, MRT OR-H, SLP loudmouths, BMR adj PHB, BMR LCA, Eibach Pro-Kit, cobra jet big oval TB.
Ubnbit is offline   Reply With Quote
Old 09-18-2013, 05:47 PM   #7
Registered Member
Regular
 
Mystic96's Avatar
 
Join Date: Oct 2012
Location: KC
Region: Missouri
Posts: 161
Coil?

---------- Post added at 05:47 PM ---------- Previous post was at 05:44 PM ----------

Sounds like fuel or ignition what about the TPS that can cause it not to idle or surge?
Mystic96 is offline   Reply With Quote
Old 09-18-2013, 06:17 PM   #8
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Ok guys, I'm a bit confused here...

Is this engine carbureted or does it have fuel injection?
I doubt it has both...

What carburetor does it have Bit?
Fuel pump?
Some history would be helpful...
straybullitt is offline   Reply With Quote
Old 09-18-2013, 07:54 PM   #9
Registered Member

Regular
 
Ubnbit's Avatar
 
Join Date: Jan 2013
Location: Tazewell
Region: Tennessee
Posts: 3,532
Sorry about that brother. I edited the post. I went back and read it and was confused myself.
__________________
Tint, louvers, Shelby brake light cover, sequentials, brake vent ring delete, Shorty antenna, JLT cold air intake, BAMA tune, VMP 2.5 S/C pulley, Ford racing shifter, MRT OR-H, SLP loudmouths, BMR adj PHB, BMR LCA, Eibach Pro-Kit, cobra jet big oval TB.
Ubnbit is offline   Reply With Quote
Old 09-18-2013, 09:30 PM   #10
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Quite alright my friend...

A few things that I would check:

First, when you guys timed it the spout connector was removed I assume.

The fuel pressure regulator could be faulty. Do a fuel pressure test.

Bad 02 sensor.

Use the correct plugs and recommended gap for the engine.

The plugs aren't oil fouled are they?
straybullitt is offline   Reply With Quote
Old 09-19-2013, 04:41 PM   #11
Registered Member
Regular
 
abbott77's Avatar
 
Join Date: Jun 2013
Location: morristown
Region: Tennessee
Posts: 84
sorry for chiming in late but bit is my brother and is helping me figure this thing out. it is carbon fouling the plugs (fluffy black soot). it is a 4 cyl. swap, 86 coupe to a 93 5.0. theres no wondering fluids and we have put a full tune up on it and changed almost every sensor and nothing has changed it. setting the timming has alowed it to idle but still smothers out in 2nd. it acts like the injectors are firing at different times as the plugs

---------- Post added at 02:41 PM ---------- Previous post was at 02:38 PM ----------

would the pip cause this or maybe the o2 sensors. thats about the only things left to change. it has a bluish grey smoke when u throttle it up
abbott77 is offline   Reply With Quote
Old 09-19-2013, 04:53 PM   #12
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Have you guys checked the fuel pressure?
Is there a strong odor of fuel coming from the tailpipes?
Did you remove the spout connector before timing the engine?
Exactly, what all have you replaced? As far as sensors?
Did this problem just suddenly occur?

We're going to need some background, because, well, this is the internet and we're not there to physically, hear, feel, touch, your car...
straybullitt is offline   Reply With Quote
Old 09-19-2013, 05:19 PM   #13
Registered Member
Regular
 
abbott77's Avatar
 
Join Date: Jun 2013
Location: morristown
Region: Tennessee
Posts: 84
no it had this issue when we got it. weve changed the fuel pump, injectors, maf sensor, throttle position, air sending unit, temp. sending unit, map sensor. we have 3 computers the 1 it runs on is a da1 with a hypertech chip want even hit with the other 2 and neither have a chip and i know ive left something out. plugs, wires cap and rotory button, 93 gas with and without fuel treatment
abbott77 is offline   Reply With Quote
Old 09-19-2013, 05:28 PM   #14
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Hmmm... that's a lot of stuff!!!!!
I'm thinking that it is a fuel delivery problem.
Are there any codes?
What is the "pip" that you were referring to?
straybullitt is offline   Reply With Quote
Old 09-19-2013, 05:40 PM   #15
Registered Member
Regular
 
abbott77's Avatar
 
Join Date: Jun 2013
Location: morristown
Region: Tennessee
Posts: 84
i took my tuner for my 97 to read the codes and the plugs were different but im going to try the jumper and test light to get the codes. the pip is a sensor in the distributer thats supposed to tell the brain when to fire and the injectors when to spray. acts like maybe the valves r open when the injectors spray. it idles but its ruff

---------- Post added at 03:40 PM ---------- Previous post was at 03:39 PM ----------

should the fuel pump kick on after priming without the car running and the key on
abbott77 is offline   Reply With Quote
Old 09-19-2013, 05:46 PM   #16
Registered Member
Regular
 
abbott77's Avatar
 
Join Date: Jun 2013
Location: morristown
Region: Tennessee
Posts: 84
you can get the car rolling and mash it in first and it is bad a$$, it comes to life but when u hit 2nd it floods out. some plugs are carbon fouled and some are fuel fouled. in 2nd it want pick up any speed
abbott77 is offline   Reply With Quote
Old 09-19-2013, 06:08 PM   #17
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
The fuel pump should run for about a second and then stop when you turn the key to the "on" position.
Definitely try to retrieve any codes. They'll at least give you a starting point.
straybullitt is offline   Reply With Quote
Old 09-19-2013, 06:56 PM   #18
Registered Member
Regular
 
Mystic96's Avatar
 
Join Date: Oct 2012
Location: KC
Region: Missouri
Posts: 161
I found this u might wanna check it out hope it helps.
http://webpages.charter.net/darrell1/mustang_efi.html
Mystic96 is offline   Reply With Quote
Old 09-19-2013, 07:19 PM   #19
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
Very nice Mystic!!!!

Gotta love the internet...
straybullitt is offline   Reply With Quote
Old 09-20-2013, 08:07 AM   #20
Registered Member
Regular
 
jduckz5.0's Avatar
 
Join Date: Apr 2013
Location: pittsburgh
Region: Pennsylvania
Posts: 310
Check ur firing order is correct!!! Check fuel pressure regulator!!! Has that timing chain ever been replaced???
jduckz5.0 is offline   Reply With Quote
Old 09-20-2013, 09:06 AM   #21
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
Is distributor in the right way? Could be out 180
351stroker is offline   Reply With Quote
Old 09-20-2013, 06:06 PM   #22
Registered Member
Regular
 
abbott77's Avatar
 
Join Date: Jun 2013
Location: morristown
Region: Tennessee
Posts: 84
thanks for that wright up mystic that is dang nice. we have set the timing right on specs but had to take the wires back one and it smoothed out some. the brain we have is a da1 i keep reading that we are supposed to have is a9l. the timing chain is a possibility because we dont know whats inside yet
abbott77 is offline   Reply With Quote
Old 09-20-2013, 06:16 PM   #23
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,412
The timing chain is an easy check.
Just put the pointer on the harmonic balancer at top dead center and take the distributor cap off. Move the crankshaft back and forth and watch the rotor. See how many degrees of deflection there is before the rotor moves...
straybullitt is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



10:36 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.