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

85GT my 4th foxbody

  • Thread starter Thread starter Mark 7 LSC
  • Start date Start date Jul 28, 2018

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Jul 28, 2018
#1
  • Jul 28, 2018
  • #1
Recently I bought my fourth Mustang an 85GT 5speed. I bought as a non runner and the car has sat up for the last 4 years. I know I need to drain and refill the oil and coolant. What should I do next before trying to start the car?
 

Attachments

  • 85GT.webp
    219.3 KB · Views: 212
  • 85GT 3.webp
    223.4 KB · Views: 225

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
28,013
10,637
213
polk county florida
Jul 28, 2018
#2
  • Jul 28, 2018
  • #2
I would drop the fuel tank and make sure it is clean, change the fuel filter, is it carb or cfi?
 

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Jul 28, 2018
#3
  • Jul 28, 2018
  • #3
General karthief said:
I would drop the fuel tank and make sure it is clean, change the fuel filter, is it carb or cfi?
Click to expand...
Got it. Its carb
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
28,013
10,637
213
polk county florida
Jul 28, 2018
#4
  • Jul 28, 2018
  • #4
Ok, there may be a fuel filter in the carb where the fuel line is screwed to the carb, blow out the fuel lines too.
 
Reactions: Mark 7 LSC

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Jul 28, 2018
#5
  • Jul 28, 2018
  • #5
flush/replace all fluids-oil,brake, trans, rear, ps, gas,coolant, and all filters-oil, gas, trans, air
replace plugs, rotor,cap, wires, wheel cylinders, brake hoses, radiator hoses, thermostat. belts
remove all spark plugs and squirt a little oil in each cylinder- turn the motor over by hand to make sure no rings are binding and the motor turns over
I would remove the coil and crank the engine over to make sure you have fuel pressure and no gas leaks.
lubricate the throttle cable and TB springs
I would pour about 8 ounces or so of MMO in each side of the top end to free up any sticky lifters, valves, rings.
check the TPS voltage
Don't be surprised if you have gasket such as rear main seal, valve cover, pan ,etc. that leak from dry rot. and that your injectors may be stuck or in need of cleaning.
 
Reactions: Branden1995 and Mark 7 LSC

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Jul 28, 2018
#6
  • Jul 28, 2018
  • #6
Thanks I now have good list to go by but first I have a few questions. "I would pour about 8 ounces or so of MMO in each side of the top end to free up any sticky lifters, valves, rings." What is MMO ? General Karthief there is a line that screws into the carb. How do I blow the line out?

I'll try to remember to take pictures and keep you guys updated.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
28,013
10,637
213
polk county florida
Jul 29, 2018
#7
  • Jul 29, 2018
  • #7
Marvel mystery oil
remove the line at the carb, here, this may help with the carb if it is still stock http://www.mustangandfords.com/how-to/engine/mump-0907-how-to-understand-the-holley-4180/
Notice the different color nut where the fuel line screws on, I think there is a fuel filter in there. Get some repair manual s to help you alone and we will help too.
 
Reactions: Mark 7 LSC

85ragtop

BTW, I like dudes.
10 Year Member
Nov 29, 1999
823
475
123
NC
Jul 29, 2018
#8
  • Jul 29, 2018
  • #8
I don't think he can check the tps on it.
 

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Jul 30, 2018
#9
  • Jul 30, 2018
  • #9
View: https://youtu.be/Q6vYobtpbh0
 
Reactions: Branden1995, ttbit and General karthief

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Jul 30, 2018
#10
  • Jul 30, 2018
  • #10
I'll get started on to do list that you guys gave me as soon as the weather clears up here in Dallas,Tx. Its raining today on my side of town.
 

Mark 7 LSC

5 Year Member
Feb 8, 2017
47
32
38
Triple D Dallas, Texas
Aug 2, 2018
#11
  • Aug 2, 2018
  • #11
So I made a little progress on the 85 today. I removed the old battery tray and found a little surface rust and cleaned it up with a wire brush and finished it off with three coats of rust neutralizer. Installed a new battery tray and battery to see what electrical components work. The headlights and taillights were the only components to work. So tomorrow I'll be back at it in the morning before the heat wave comes through. I'll keep y'all posted.
 

Attachments

  • IMG_20180801_155947.webp
    175 KB · Views: 146
  • IMG_20180801_155819.webp
    162.1 KB · Views: 138
  • IMG_20180801_164631.webp
    288.8 KB · Views: 144
Reactions: Branden1995 and ttbit
You must log in or register to reply here.

Similar threads

G
1991 GT 5.0 running hot
  • gvanginkel403
  • Jul 1, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
194
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 2, 2026
General karthief
K
86 GT Water Pump
  • Kade5114
  • May 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
141
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2026
nickyb
F
Fox 1990 Mustang GT 5.0 A9L – Engine suddenly shuts off but immediately restarts when key turned
  • FishermansFriend
  • Aug 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
16
Views
469
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 30, 2026
General karthief
Lost my Foxbody
  • Mhalc1
  • Feb 10, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
19
Views
806
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 17, 2026
Mhalc1
W
Speedometer and shifting issues
  • wyatt-tetro891
  • Aug 17, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
182
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 18, 2026
wyatt-tetro891
W
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?