5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

New 5.0 that is falling on its face...help! *update*

Thread Tools
 
Search this Thread
 
Old 08-28-2007, 12:45 AM
  #41  
bikeboy587
4th Gear Member
Thread Starter
 
bikeboy587's Avatar
 
Join Date: Mar 2007
Location: Buffalo, NY
Posts: 1,541
Default RE: New 5.0 that is falling on its face...help!

i live in ny so i got to deal with emissions bs
bikeboy587 is offline  
Old 08-28-2007, 06:38 PM
  #42  
Slimboyfatty
1st Gear Member
 
Slimboyfatty's Avatar
 
Join Date: Jul 2007
Location:
Posts: 64
Default RE: New 5.0 that is falling on its face...help! *update*


[hr]

I dont know if you ever found out what was wrong but I had the same type of thing happen to my mustang I have a 94 gt 5.0 and it was my mass air flow sensor was going bad one time and it wasnt allowing enought air to be forced into the engine and what not. Also check the oil kneck. There should be a vacuum hose that goes to the oil load kneck. My clamp broke off from the heat wave we had here in MO and the vacuum hose from my CAI to my oil load kneck came off and it made it do that same thing. Just some things to check into if its still acting up after all other options or expensed.
Slimboyfatty is offline  
Old 09-01-2007, 07:38 PM
  #43  
95 331GT
 
95 331GT's Avatar
 
Join Date: Jan 2007
Posts: 29
Default RE: New 5.0 that is falling on its face...help! *update*

You gotta watch for those ****in cats... they'll get you every time, the trick I use is to tap on them with a rubber mallet and if they rattle then it's time for the sawzall to cut those bastards out. Hind sight is 20/20 but I gotta ask "Why didn't you check that right away???" slow revs, probably a rattle noise when you hit the throttle, and generally ****ty performance... come on a retarded chevy owner would've caught that one...
95 331GT is offline  
Old 09-01-2007, 08:59 PM
  #44  
94StinkinLincoln
5th Gear Member
 
94StinkinLincoln's Avatar
 
Join Date: Dec 2006
Location: louisiana
Posts: 2,763
Default RE: New 5.0 that is falling on its face...help! *update*

heres where some of the possible problems are coming from:
TPS: throttle position sensor
IAT: intake air temperature sensor
02 sensors
Cats clogged
MAF
or vac leak
also check the EGR: exhaust gas regulator

the cats will make it seem like it has a 2 cylinder running on one cyl. exhaust flow is very important on these motors. you can pull the midpipe, shine a light in there and look at the cats. it should have a honey comb like material in there and not broken, if its broken, its causing a restriction. you can take a metal rod and put it in there and beat the crap out w/ a hammer. there is metal mesh material that will need to be gotten out with a sturdy piece of wire. when emissions comes around, either pay some one off or buy a catted midpipe.
94StinkinLincoln is offline  
Old 09-01-2007, 10:43 PM
  #45  
bikeboy587
4th Gear Member
Thread Starter
 
bikeboy587's Avatar
 
Join Date: Mar 2007
Location: Buffalo, NY
Posts: 1,541
Default RE: New 5.0 that is falling on its face...help! *update*

ok, i took the mid pipe off and ran open headers.....so no cats...and still reved slow and couldn't get out of its own way. so it is not the cats, we also looked at them and they are not clogged.[/align]At this point the new parts are:[/align]Cap[/align]Rotor[/align]Distributor[/align]Fuel Filter[/align]Wires[/align]MAF (came new)[/align][/align]We pulled a plug and 3 of the 4 we pulled were ghost white....im getting no fuel. Tomorrow Im gonna check the fuel pressure, the rails, and the injectors...i think it is the injectors bec one plug was ok...[/align][/align]ill keep you guys updated[/align]
bikeboy587 is offline  
Old 09-01-2007, 10:51 PM
  #46  
94StinkinLincoln
5th Gear Member
 
94StinkinLincoln's Avatar
 
Join Date: Dec 2006
Location: louisiana
Posts: 2,763
Default RE: New 5.0 that is falling on its face...help! *update*

well i got a stock regulator if you think thats the prob. u can have it just pay for the shipping.
94StinkinLincoln is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Urambo Tauro
5.0L (1979-1995) Mustang
6
10-05-2015 09:37 PM
Matt's 95 Stang
5.0L (1979-1995) Mustang
2
10-05-2015 07:16 AM
mungodrums
S550 2015-2023 Mustang
10
09-28-2015 10:54 PM
treesloth
New Member Area
4
09-28-2015 07:03 AM
AMAlexLazarus
AmericanMuscle.com
0
09-23-2015 01:14 PM



Quick Reply: New 5.0 that is falling on its face...help! *update*



All times are GMT -5. The time now is 08:01 AM.