• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

94 Gt Help!!

  • Thread starter Thread starter 9494gtgt
  • Start date Start date Oct 12, 2017
  • Tags Tags
    94 mustang stalling
9

9494gtgt

New Member
Oct 12, 2017
1
0
1
Oct 12, 2017
#1
  • Oct 12, 2017
  • #1
I have a 1994 gt 5.0 v8 and I can not seem to figure out what’s wrong with it. The car will randomly turn off out of nowhere. The Rpms will bounce rapidly and then just fall to zero and car will turn off. Sometimes it starts back up and I can drive and other times it will die upon turning on again. I pulled the following codes 314, 311, 332, 411.

Things about car that might help you help me... :
The car temperature gauge goes up but it barley falls inside the “normal temp” part and it won’t go higher even after being on 45+ min. Changes the thermostat and still persists

Car had a dizzy problem that caused it to turn off when starting car but changed dizzy and got rid of the code/problem that gave

Car is straight piped with mudflers only

Please help!

I got codes from Koer test, and car turned stalled/turned off during test

411 is an issue with the idle. The others are for smog stuff and aren’t really a big deal. Id start by cleaning the IAC and MAF.

The Green GT said:
411 is an issue with the idle. The others are for smog stuff and aren’t really a big deal. Id start by cleaning the IAC and MAF.
Click to expand...

Cleaned maf with maf cleaner, problem till Persists, I’ve noticed it’s more likely to happen once the car is on for a little

I had this happen to me. In my case it was the CCRM, the relay for the engine kept popping open and cutting electrical power to the engine. It was an intermittent issue; sometimes it took several days to happen, other times it happened several times a day. Sometimes I could restart the car while it was rolling, other times I had to pull over and wait several minutes. I don't remember if there were any codes.

Chythar said:
I had this happen to me. In my case it was the CCRM, the relay for the engine kept popping open and cutting electrical power to the engine. It was an intermittent issue; sometimes it took several days to happen, other times it happened several times a day. Sometimes I could restart the car while it was rolling, other times I had to pull over and wait several minutes. I don't remember if there were any codes.
Click to expand...

How did you fix it?

9494gtgt said:
How did you fix it?
Click to expand...

Simple - replaced the CCRM. It's the rectangular module on the bracket that holds the coolant overflow bottle. Here's a good photo on LMR.com, though they're out of stock:

https://lmr.com/item/LRS-12577A/mustang-ccrm-relay-pcm-fuel-pump-fan-9400

Chythar said:
Simple - replaced the CCRM. It's the rectangular module on the bracket that holds the coolant overflow bottle. Here's a good photo on LMR.com, though they're out of stock:

https://lmr.com/item/LRS-12577A/mustang-ccrm-relay-pcm-fuel-pump-fan-9400
Click to expand...
Are you sure thats it? Cause everywhere i look they say its under the passenger side fender...

Can someone tell me where the CCRM is located on a 1994 mustan gt 5.0 V8??

Not sure where you've been researching, maybe that info is for 93 and earlier Mustangs. The only thing we have in our passenger fender is solenoids for the emissions parts like the EGR and AIR pump and the charcoal canister which holds gas fumes from the gas tank. I am positive that the CCRM is where I said it is, on the bracket that holds the coolant overflow tank.

Now, I don't know for sure that the CCRM is your issue. But it sounds like it to me.

At the CCRM (Constant Control Relay Module – the black box mounted on the radiator overflow bracket): With the key turned to run, check Pin 12 and 24 for accessory power. If it’s there, the issue lies past the CCRM. If there’s no power: Check CCRM Pins 8 and 10 for constant 12 volts. Check CCRM Pin 13 for accessory 12 volts. Check CCRM Pin 15 for ground. If 8, 10, 13 and 15 are present (this requires the key to be on), but 12 and 24 are not showing 12 volts, that suggests a bad EEC relay inside the CCRM.
I didn't write that, I googled it
 
Last edited by a moderator: Oct 15, 2017
You must log in or register to reply here.

Similar threads

F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
180
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
A
Resolved 03 GT Parasitic Draw Fuse 26 (PCM)
  • Antrix
  • Mar 22, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
659
SN95 4.6L Mustang Tech Mar 24, 2025
89ripper
I
98 Mustang GT dying
  • ItsMason
  • May 14, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
64
1996 - 2004 SN95 Mustang -General/Talk- May 16, 2026
roblabsn95
R
1999 Mustang GT - No Start- Need help understanding the fuel pump circuit and how it works
  • 99gtGuy
  • Nov 4, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
477
1996 - 2004 SN95 Mustang -General/Talk- Nov 7, 2025
04newedge-
0
T
Help with a 95 5L crank no start
  • TheBubbaJoe
  • Nov 4, 2025
  • 1994 - 1995 Specific Tech
Replies
3
Views
399
1994 - 1995 Specific Tech Nov 5, 2025
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?