1995 F150 5.8 auto /overdrive tranny problem - Ford Truck Enthusiasts Forums



1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

1995 F150 5.8 auto /overdrive tranny problem

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 04-11-2011, 05:19 PM
theclaus11 theclaus11 is offline
New User
Thread Starter
 
Join Date: Apr 2011
Posts: 2
theclaus11 is starting off with a positive reputation.
Smile 1995 F150 5.8 auto /overdrive tranny problem

Hello can someone please give me some advise on a problem i am having. I own a 95 f150 with 5.8 and auto w/overdrive tranny. I have noticed when leaving off the accelerator while in gear at all speeds it feels as there is "play" in the transmission. It bangs into gear. If you push on and off of the gas pedal it bangs. there is no slippage or anything. Is it possible some type of minor part can be the cause. there is only 70,000 miles on it.
Reply With Quote
  #2  
Old 04-12-2011, 06:51 AM
Lazy K Lazy K is offline
Post Fiend
 
Join Date: Jan 2005
Posts: 8,402
Lazy K is a name known to allLazy K is a name known to allLazy K is a name known to allLazy K is a name known to allLazy K is a name known to allLazy K is a name known to all
Is the fluid level good? I think I would also check for any trouble codes as it could be a sensor problem.
Reply With Quote
  #3  
Old 04-13-2011, 05:15 AM
theclaus11 theclaus11 is offline
New User
Thread Starter
 
Join Date: Apr 2011
Posts: 2
theclaus11 is starting off with a positive reputation.
yes fluid is good! what does the tranny solenoid do and where is it located? can this be the problem?
Reply With Quote
  #4  
Old 04-13-2011, 09:15 AM
timboslice85 timboslice85 is offline
Junior User
 
Join Date: Apr 2011
Posts: 65
timboslice85 is starting off with a positive reputation.
Sounds like slack in the rear differential to me. Does it make any whining or roaring noises while you accelerate? Check the universal joints and put the truck in neutral and hit the parking brake. Of course do not have the truck running. Take your hands and turn the drive shaft back and forth to see if there is any play. There should be a little but not much. Maybe a half inch from the stopping point on one side to the stopping point on the other side. Just my $.02
Reply With Quote
  #5  
Old 03-28-2017, 08:59 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
is the off light on the shifter blinking that means theres a code there are 3 or 4 sensors that make this light blink even throtle position sensor is one of these if you hAVE A BOOK TO IT THERE IS A PAGE REGUARDING THESE SENSORS sorry hit caps .lol i just baught thissame truck and im learnig it i dont usually drive autos ill keep in touch and let us know if you figure it out please
Reply With Quote
  #6  
Old 06-13-2017, 11:55 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
bang bang damn tranny

my tranny is still shifting hard but only once in a wile it does this i cant pull code cause as soon as i turn the key off the problem dissapears ive replace tps and also the speed sensor in the rear end what the hell is going on here even replaced the tranny since first on blew the front seal and i had to drive it as far as i could so wjat up fellas is it in the dash cluster some how
Reply With Quote
  #7  
Old 06-13-2017, 04:45 PM
rla2005's Avatar
rla2005 rla2005 is online now
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 12,946
rla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud ofrla2005 has much to be proud of
If the Check Engine Light (CEL) came on that means the code is stored in Continuous Memory. So regardless if you shut the truck off the code can be retrieved.
Reply With Quote
  #8  
Old 06-14-2017, 04:16 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
tranny shifting hard still

there is no check engine light just the off light blinks check engine light doesnt come on and it doesnt tell me nuttin the off light is the overdrive button i can stop and put it in park and shut truck off and it will reset it and be good for a wile or it wont reset it and some times it shifts hard and i keep driveing it and it will fix its self and light goes out hummmmmmmmmmmmmm pretty fed up with it
Reply With Quote
  #9  
Old 06-14-2017, 07:11 AM
My4Fordtrucks's Avatar
My4Fordtrucks My4Fordtrucks is offline
Posting Guru
 
Join Date: Jun 2015
Posts: 1,032
My4Fordtrucks is starting off with a positive reputation.
If the overdrive cancel light is blinking there there are faults in the system it would be easier to read your posts if you used punctuation since it is a giant run on sentence
Reply With Quote
  #10  
Old 06-14-2017, 07:36 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
i appoligize . i do realize there are faults in the system . tis why the blinking light . ive replaced the speed sensor in the rear. and the tps sensor what is next
Reply With Quote
  #11  
Old 06-14-2017, 09:58 AM
HardScrabble HardScrabble is offline
Posting Guru
 
Join Date: Aug 2003
Posts: 1,024
HardScrabble is starting off with a positive reputation.
Get the codes. There are troubleshooting charts based on the codes. The charts tell you what to do. Someone here has the charts. Get the codes.

If you keep driving the truck it will self-destruct. Shotgunning it with your best guesses will waste time and money.

If your luck is that good, go buy a lottery ticket and buy a new truck with your winnings.
Reply With Quote
  #12  
Old 06-14-2017, 10:37 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
alow me to specifi. there are no codes.... the check engine light is not and does not come on... i have 2 different scan tools includeing the acual ford obd1 reader and my good expensive scan tool does not come up with codes either... when i drive down the road its fine. i come to a stop and start again it will start shifting extremly hard ... this only happens every couple of weeks... some times i can stop put it in park shut the truck off wait 3 min thwen start it and go and it will be fine ... other time not ... but if i park it and let it sit a few hours then it will be fine again shifts so nice you cant feel it shift.... this is the second tranny i put in the truck ... i did put tps sensor in it and also rear end speed sensor ... as ive restored this truck and wanted them to be new anyway at a cost of about 40 bucks and an hour of my time... i am mechanically inclined .. but at the end of my ropes .. there for im asking on here . again no check engine light ever comes on... only the over drive OFF LIGHT BLINKS ... TILL I SHUT THE TRUCK OFF . THANKS FOR REPLIES PLEASE KEEP THINKING AND OFFERING SUGGESTIONS OOPS GUESS I HIT THE CAPS BUTTON.. SORRY ...
Reply With Quote
  #13  
Old 06-14-2017, 10:54 AM
Mark Kovalsky's Avatar
Mark Kovalsky Mark Kovalsky is offline
Post Fiend
 
Join Date: Aug 1999
Location: SE Florida
Posts: 15,783
Mark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputation
When the OD OFF light flashes codes are stored in continuous memory to tell you what's wrong. Without the codes all anyone can do is guess.

It could be the Transmission Range Sensor (also called the MLPS,) the torque converter, the transmission itself, a stuck valve in the valve body, a stuck valve in the pump body, a bad torque converter control solenoid, a faulty shift solenoid (there are three of those,) a faulty Electronic Pressure Control Solenoid, a faulty trans temp sensor, a faulty internal harness, a faulty harness between the PCM and the trans, corrosion in any of the connectors on the trans or rear end, or even a few of the engine sensors.

I also suspect that you don't have power to the Keep Alive Power pin of the EEC connector. Without this power the PCM will erase the codes each time the key is turned off.
Reply With Quote
  #14  
Old 06-14-2017, 11:23 AM
kregalmach1's Avatar
kregalmach1 kregalmach1 is offline
Junior User
 
Join Date: Feb 2010
Posts: 75
kregalmach1 is starting off with a positive reputation.
okay now were getting somewhere . thanks so much. i did just remember that when i get to 65 mph the speedometer jumps from 65 to 75 then quits when i get back to 60mph does this tell you anything. and the keep alive power pin should it have power even when the key is off. and would this pin be the sepperate pin on the obd1 harness . and i will definitly check on those shift cylinoids .o and where is the trans temp sensor? it does seem to me that its always after i run it more than an hour or like yesterday it was nearly 100 degrees out and it started shifting hard just after i started running it ..thanks again.
Reply With Quote
  #15  
Old 06-14-2017, 02:31 PM
Mark Kovalsky's Avatar
Mark Kovalsky Mark Kovalsky is offline
Post Fiend
 
Join Date: Aug 1999
Location: SE Florida
Posts: 15,783
Mark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputationMark Kovalsky has a superb reputation
Quote:
Originally Posted by kregalmach1 View Post
i did just remember that when i get to 65 mph the speedometer jumps from 65 to 75 then quits when i get back to 60mph does this tell you anything.
Yes, it tells me that I should add a bad PSOM (located on the back of the instrument cluster) to the list of things that might be causing the problem.

Quote:
Originally Posted by kregalmach1 View Post
and the keep alive power pin should it have power even when the key is off. and would this pin be the sepperate pin on the obd1 harness .
Having power when the key is off is the entire reason this circuit exists. As I remember it (it's been 30 years since I worked on an OBDI!) Keep alive power is located at pin #1 at the PCM.

Quote:
Originally Posted by kregalmach1 View Post
and i will definitly check on those shift cylinoids .o and where is the trans temp sensor?
The trans temp sensor is part of the solenoid body, which is also where the shift solenoids are located.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
92 f150, 5.8 auto, trans goes in and out of drive on highway oneandgone 1987 - 1996 F150 & Larger F-Series Trucks 8 03-07-2017 10:09 AM
Transmission Bang Shifting - Overdrive Off Light Flashes NickInFC Explorer, Sport Trac, Mountaineer & Aviator 19 06-30-2016 07:37 AM
1988 F150 2wd 5.8w, upgrade advise Cliff Broderick 1987 - 1996 F150 & Larger F-Series Trucks 1 03-01-2016 08:15 PM
93 5.8 misfiring under load - hoping for quick diagnosis tabijan 1968-2013 Full Size Vans 23 01-05-2016 12:43 PM
8.8 Traction Lock Clunk bronco5.8 1978 - 1996 Big Bronco 25 09-22-2004 03:35 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
150, 1995, 302, 95, auto, automatic, autotransmission, f150, ford, issues, overdrive, problem, problems, slipping, transmission, truck

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 Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 10:13 AM.