• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

sucking oil? causeing to cut out?

  • Thread starter Thread starter LETHALFORDS
  • Start date Start date Jun 4, 2009
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 4, 2009
#1
  • Jun 4, 2009
  • #1
im haveing a problem with my car cutting out.
i think its suckin oil throw that vacum line . that goes from the upper intake to the back of the lower intake.

does any body have any ideas?
 

Turd Tops

New Member
Apr 9, 2009
103
0
0
South Lyon , Michigan
Jun 4, 2009
#2
  • Jun 4, 2009
  • #2
1st. Are you having a oil consumption problem?
2nd. If you pull the line off is it saturated with oil inside?
3rd. Are you blowing smoke out of the tail pipes?
4th. What do the plugs look like?
 
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 4, 2009
#3
  • Jun 4, 2009
  • #3
whats oil consumption?
and i havent pulled the line yet to check if is saturated.
and it dosent smoke
and the plugs look brand new still i put them in lik 3 months ago.
 

Turd Tops

New Member
Apr 9, 2009
103
0
0
South Lyon , Michigan
Jun 4, 2009
#4
  • Jun 4, 2009
  • #4
LETHALFORDS said:
whats oil consumption?
Click to expand...

How often do you have to add oil?
What makes you think your sucking oil?
What RPM does it start to cut up?
How are the plugs and wires? Cap and rotor?
Has this been an on going problem or did this problem start all at once?
 
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 5, 2009
#5
  • Jun 5, 2009
  • #5
lik a half a court every lik 5 or 6 weeks

beacuse i changed the upper manifold because my old one was sucking oil up in to the upper intake but it was cutting out. so i canged the upper and it ran good at first then it started cutting out and i thought it was fuel. so i gotta brand new regulator , newer injectors , fuel filter , wires , plugs , cap and rotor. and i think thats it.
and it doesnt start cutting out intel about 4000 rpms and up.
and its been doing its since i changed the upper.
 

dcurtis

10 Year Member
Jan 19, 2006
688
7
39
Jun 5, 2009
#6
  • Jun 5, 2009
  • #6
that line is called the pcv valve.
 
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 5, 2009
#7
  • Jun 5, 2009
  • #7
any one have any ideas y its doing that?
 

Turd Tops

New Member
Apr 9, 2009
103
0
0
South Lyon , Michigan
Jun 5, 2009
#8
  • Jun 5, 2009
  • #8
LETHALFORDS said:
any one have any ideas y its doing that?
Click to expand...


Have you checked timing?
If the plugs are'nt covered in oil and look VERY clean it might be running lean at high RPM's. What mods are done to the car? ANY info as to what has been done to the car will help. Are there any vacuum leaks?
 
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 5, 2009
#9
  • Jun 5, 2009
  • #9
the only vacume leak is the hose to the egr.
the has a b cam with ported heads and roller rockers 70mm throttle body 75 mass air , headers . umm have the smog pump delete and a/c delete.
i checked the timing a while ago when i put the upper back on so idk ill check that tomorrow.

but i think thats all the engine mods
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 6, 2009
#10
  • Jun 6, 2009
  • #10
A high RPM miss on a warm engine is usually a TFI module problem. The TFI module mounts on the side of the distributor and provides a ground to fire the coil.
 
L

LETHALFORDS

New Member
May 28, 2009
26
0
0
Jun 6, 2009
#11
  • Jun 6, 2009
  • #11
should i get the stock one or a after market?
 
You must log in or register to reply here.

Similar threads

C
Engine Idle cuts out
  • claypoolxx
  • Mar 7, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
25
Views
764
Fox 5.0 Mustang Tech Friday at 5:04 PM
alutwon
Engine Catch Can or not?
  • R82148V
  • Mar 4, 2026
  • Fox 5.0 Mustang Tech
Replies
9
Views
362
Fox 5.0 Mustang Tech Mar 6, 2026
ctandc
C
Engine Cleaning Intake valves with lower intake off
  • R82148V
  • Mar 4, 2026
  • Fox 5.0 Mustang Tech
Replies
13
Views
443
Fox 5.0 Mustang Tech Mar 11, 2026
limp
A
Electrical electric mirror switch issue...
  • alchemist1
  • Apr 18, 2026
  • Fox 5.0 Mustang Tech
Replies
1
Views
117
Fox 5.0 Mustang Tech Apr 19, 2026
2000xp8
Engine 87 NA - Tune or no Tune needed?
  • R82148V
  • Sep 17, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
376
Fox 5.0 Mustang Tech Sep 17, 2025
R82148V
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?