94 GT driving weird - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 01-21-2015, 08:46 AM   #1
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
94 GT driving weird

Okay so about a week ago I was driving and I tried to pass someone and it got up to 4,000 - 5,000 rpm and well the best way to describe it is it was stuttering and slowing then it would shift by the way it's automatic and I just got it replaced about a month ago. Could it be the clutch? Could it be the fuel injectors clogged? Or the mass air flow censor? Maybe bad gas?


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-21-2015, 09:09 AM   #2
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
aside from the clutch, it sounds like you got your path planned out already. auto's have clutch sets, which are these little discs, as opposed to "A clutch", which is a torque converter in your case (kind of like a hydraulic turbine fluid clutch engagement system, but not just that simple)

are you saying that, at highway speeds you push the pedal down, and all that happens is the rpm rises, mph goes down, until it momentarily engages and then works fine?

unfortunately, having replaced it a month ago, it could be a number of things. i wouldn't rule out the transmission just yet, but it sounds like a fluid or solenoid problem. hopefully the clutch packs are new and fine.

check your fluid level in the transmission. confirm, (if possible) that its filled with merconV or something compatible. then move on to a tune up if needed.

any other performance issues?

EDIT - just realized were talkin about a 94 gt and not a 96-98. i assume its the same AOD soemthing transmission? either way, they probably used regular old mercon which should be fine. possibly solenoid or fluid level i think.
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-21-2015, 09:29 AM   #3
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
aside from the clutch, it sounds like you got your path planned out already. auto's have clutch sets, which are these little discs, as opposed to "A clutch", which is a torque converter in your case (kind of like a hydraulic turbine fluid clutch engagement system, but not just that simple)

are you saying that, at highway speeds you push the pedal down, and all that happens is the rpm rises, mph goes down, until it momentarily engages and then works fine?

unfortunately, having replaced it a month ago, it could be a number of things. i wouldn't rule out the transmission just yet, but it sounds like a fluid or solenoid problem. hopefully the clutch packs are new and fine.

check your fluid level in the transmission. confirm, (if possible) that its filled with merconV or something compatible. then move on to a tune up if needed.

any other performance issues?

EDIT - just realized were talkin about a 94 gt and not a 96-98. i assume its the same AOD soemthing transmission? either way, they probably used regular old mercon which should be fine. possibly solenoid or fluid level i think.

The speed doesn't drop it just doesn't speed up as fast as it usually does but this all happened after I filled up with gas and I was driving really aggressive because my friend got in a wreck so could I have messed something up driving aggressive?


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-21-2015, 09:35 AM   #4
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
I should also mention that it doesn't start well after sitting over night.


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-21-2015, 09:42 AM   #5
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
throw a can of seafoam in it and see what happens. it is possibly that you got some awful bad gas in it. but driving aggresively shouldnt slow that engine down.
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-21-2015, 11:31 AM   #6
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
94 GT driving weird

I put some sort of techron in it and it didn't seem to do much


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-21-2015, 11:46 AM   #7
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
and its only at that rpm range? you redline at like, 5 and a half k, right? idk where your peak horsepower is supposed to be, maybe its just the solenoid not shifting in time and leaving you running past the peak on your hp curve? otherwise it is possible that something electronic is not keeping up, and thus the engine is falling on its face at high rpm. how much gas is left in the tank?
also, how old are the usual suspects? (plugs, coils/distributer, air filter, fuel filter, fuel pump, maf, etc)

no engine codes? (requires an obd1 scan tool, or a trick with a paperclip if it works with theses)
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-21-2015, 12:00 PM   #8
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
and its only at that rpm range? you redline at like, 5 and a half k, right? idk where your peak horsepower is supposed to be, maybe its just the solenoid not shifting in time and leaving you running past the peak on your hp curve? otherwise it is possible that something electronic is not keeping up, and thus the engine is falling on its face at high rpm. how much gas is left in the tank?
also, how old are the usual suspects? (plugs, coils/distributer, air filter, fuel filter, fuel pump, maf, etc)

no engine codes? (requires an obd1 scan tool, or a trick with a paperclip if it works with theses)

Yeah only around 4-5k and it does peak at 5.5k and it seemed to start happening just after I filled up with gas


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-21-2015, 12:18 PM   #9
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
We also just replaced the fuel filter


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-21-2015, 06:55 PM   #10
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Okay so I found out that when I shift it from first to second that it doesn't do it but then I put it into drive and it does it again


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-21-2015, 07:43 PM   #11
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
Where did you get the new transmission anyway?

Sent from my LG-D800 using Mustang Evolution mobile app
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-21-2015, 08:45 PM   #12
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
We took it to a shop in town cause the pump went out and he said he'd had one


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-22-2015, 04:12 AM   #13
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
But otherwise its running fine underneath 4000 rpm? only other things I can think of are distributor, cam/crank sensors, wires, something along the lines of timing or ignition, maybe it cant keep up at high rpm, otherwise transmission solenoid. I would do research on those individually until you find a similar issue on another 5.0 mustang.

Sent from my GT-P3113 using Mustang Evolution mobile app
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-22-2015, 08:26 AM   #14
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
But otherwise its running fine underneath 4000 rpm? only other things I can think of are distributor, cam/crank sensors, wires, something along the lines of timing or ignition, maybe it cant keep up at high rpm, otherwise transmission solenoid. I would do research on those individually until you find a similar issue on another 5.0 mustang.

Sent from my GT-P3113 using Mustang Evolution mobile app

Yeah it runs fine under 4000rpm but it doesn't start right away some times is there something that could be linked?


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-22-2015, 08:31 AM   #15
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
in my car, no crank sensor means no startup. so, dying crank sensor might have something to do with it, otherwise, you may have multiple issues. like i said, do some quick research on your year range and crank sensors. might find someone describing the same issues.
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-22-2015, 09:30 AM   #16
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
in my car, no crank sensor means no startup. so, dying crank sensor might have something to do with it, otherwise, you may have multiple issues. like i said, do some quick research on your year range and crank sensors. might find someone describing the same issues.

Okay I'll do that thanks for the help.


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-22-2015, 09:55 AM   #17
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
in my car, no crank sensor means no startup. so, dying crank sensor might have something to do with it, otherwise, you may have multiple issues. like i said, do some quick research on your year range and crank sensors. might find someone describing the same issues.

I don't believe a 94 5.0 has a crank sensor that's what I have been seeing online.


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-22-2015, 10:01 AM   #18
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
What would a misfire feel like? Could it be a spark plug problem?


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-23-2015, 07:07 AM   #19
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
I don't know if this might be related to my problem or if it is normal but when I put it in neutral then shift back to drive like at a stop light the battery goes down then back up is that normal or could that be linked to my problems?


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Old 01-23-2015, 07:13 AM   #20
Registered Member
Regular
 
fenixignition's Avatar
 
Join Date: Nov 2014
Location: Clearwater, fl
Region: Florida
Posts: 1,050
that would be an electrical problem, probably just the gauge. couldnt say if its related or not, but being a 94, it has a lot of old parts, so different things are gonna get wonky. if your unsure of the plugs, just change em. no need for anything special. basic copper ngk's or motorcrafts will be the best for it. change those then test. next step is the wires. change and test. after that, i would work on the distributor. get a new cap and rotor. (they have distributors, right? i cant remember). in case you didnt already know, the distributor moves with the engine by a gear, (in time with the rpm) so the faster the engine spins, the faster the distributor spins and sends an electrical signal to the wires and then the plugs. there is also an ignition control module before the distributor. so if you think about it, the faster it moves, the easier it might be for old parts to make a mistake or have a bad connection. so it is possible. and cheaper to fix, and even if it isnt the source of the problem, at least you now have a good tune up.
__________________
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
fenixignition is offline   Reply With Quote
Old 01-23-2015, 07:18 AM   #21
Registered Member
Regular
 
Beau_123's Avatar
 
Join Date: Sep 2014
Location: Overland Park
Region: Kansas
Posts: 126
Quote:
Originally Posted by fenixignition View Post
that would be an electrical problem, probably just the gauge. couldnt say if its related or not, but being a 94, it has a lot of old parts, so different things are gonna get wonky. if your unsure of the plugs, just change em. no need for anything special. basic copper ngk's or motorcrafts will be the best for it. change those then test. next step is the wires. change and test. after that, i would work on the distributor. get a new cap and rotor. (they have distributors, right? i cant remember). in case you didnt already know, the distributor moves with the engine by a gear, (in time with the rpm) so the faster the engine spins, the faster the distributor spins and sends an electrical signal to the wires and then the plugs. there is also an ignition control module before the distributor. so if you think about it, the faster it moves, the easier it might be for old parts to make a mistake or have a bad connection. so it is possible. and cheaper to fix, and even if it isnt the source of the problem, at least you now have a good tune up.

I replaced the spark plugs over the summer so I think I will do the wires then test and go from there thanks.


Sent from my iPhone using Mustang Evolution
Beau_123 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2013 Hooked on Driving/Camp Steeda Driving Event tj@steeda General Mustang Discussion 3 04-24-2013 07:31 AM
OMG.. WEIRD.. so weird.. wiarumas The Bar 14 02-17-2005 01:45 PM
a GUY driving a buggy? Outk4stV6 Pre-2005 V6 Mustang 18 11-21-2003 11:48 AM
Help, PATS is driving me crazy!! Rick0636 Pre-2005 V6 Mustang 10 10-31-2003 06:02 AM
water dripping on foot while driving Monkey Pre-2005 V6 Mustang 7 08-18-2003 05:41 PM

» Like Us On Facebook



11:24 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.