4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Car dies and stumbles when warm

Thread Tools
 
Search this Thread
 
Old 07-07-2011, 06:41 PM
  #11  
kev70ss
Thread Starter
 
kev70ss's Avatar
 
Join Date: Nov 2010
Location: CA
Posts: 13
Default

Originally Posted by cliffyk
How are you monitoring the ECT? Does it ever rise above 160°? I am wondering if the ECT sensor is bad...
Im looking off the gauges about 1/4 of the way up it starts to run bad. I think it has a 195 degree thermostat so it probably gets to 210. I see a lot of posts about the ccrm messing up could the be the culprit?
kev70ss is offline  
Old 07-07-2011, 07:27 PM
  #12  
cliffyk
TECH SAVANT
 
cliffyk's Avatar
 
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Default

It a 210°F T-stat (starts to open at 199°F and fully open at 219°F) if it's stock, also the temperature gauge is non-linear making trying to interpret absolute temperature a very inexact exercise.

The CCRM (Constant Control Relay Module) controls the PCM power, the cooling fan, fuel pump relay, and the A/C clutch. Other than the fuel pump relay there's nothing there that would cause the problem you describe--in any event monitoring the fuel pressure will let you know what's up...
cliffyk is offline  
Old 07-07-2011, 10:14 PM
  #13  
kev70ss
Thread Starter
 
kev70ss's Avatar
 
Join Date: Nov 2010
Location: CA
Posts: 13
Default

I think I found the problem. The coolant crossover had a crack in it leaking out coolant into spark plug #1 making it miss. Now it looks like I need a coolant cross over. Do any PI intakes work or does it have to be from a certain car? Also can I upgrade to one that has an aluminum crossover?
Thanks
kev70ss is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
djbigskrilla
2005-2014 Mustangs
24
09-20-2022 01:04 AM
ShaneB26154
4.6L (1996-2004 Modular) Mustang
35
03-04-2021 04:05 AM
Philhampton1
Classic Mustangs (Tech)
3
08-21-2015 12:04 PM
92 5.0stang
5.0L (1979-1995) Mustang
4
08-13-2015 06:46 AM
Milan Dragway
Members Rides and Car Show Section
0
08-12-2015 03:43 PM



Quick Reply: Car dies and stumbles when warm



All times are GMT -5. The time now is 12:22 AM.