Question about 1995 GMC Sierra C1500

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Help save my baby

Does ac affect opt. of trans. when ac works good, my truck runs perfect, but last year i replaced ac comp., and acc. 3 times. now comp. has went out again,and truck shifts hard in first gear, and after runing for app.30 miles straight, it starts to miss, and act like it is out of gas,then for no apperant reason, after about 10 miles, it kind of cleares up. my baby has 254,000 miles with all ornigal drive train. wouldappreciate any help.

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  • 421 Answers

Sounds like an unrelated missfire -jeff

Posted on Sep 01, 2008

  • jeff r
    jeff r Sep 01, 2008

    i would say to check your coil by sparying it with a soapy water to see is it arcs out -jeff please rate

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I think my 1995 jeep grand Cherokee has an electrical problem we've tried everything from changing censors to changing trans fluid an filter an it still won't shift an takes off in 2nd gear also the over...


still won't shift The word button , tips hand that it is a automatic trans,
but not which one. they had 2 that year, 42/44re and
the AW4 box, has a TCM (tranny brain.)
and all tranny brains go to limphome mode, (skipping or freezing 2nd) if inputs are WRONG.
the TCM can be scanned, to see why, skipping this step misses the boat,

I have the 1995 FSM book. chapter 21.
42 or 44RE trans? is that yours. the tag on side tells you what it is. look for the tag, and learn what car run for a drive-line.

see" trans... opt" here. ZJ
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

page 21-45 is diagnosis page, in the FSM book.
ON car service, and step 2 is scan it. (step one is fuses. levels)
ever consider read this book on this car and this trans?

here is the non tool way,
https://www.youtube.com/watch?v=TWXaoC3Qi7g

i use a Innova 3140 , tool that does jeep 1993-95, OBD1
i have not tried, to see if it will log a trans DTC;s
using a real scan tool , helps greatly to see all TCM codes.
most TCM can do 10 error code, all very revealing.

make sure the transmission is grounded, with a good ground strap
seen people replace trans 3 times, then do strap last. sad.

Trans issues are many
(ill skip bad trans)
  1. wiring bad, from TCM to trans, or from TCM to all sensors. to it.
  2. bad TCM
  3. lost power 12vdc to TCM for any reasons.
  4. lost ground to trans or TCM.

a scan tool that can scan this back in 1995 was the DRB-ii
DOES THAT HELP?

Mar 24, 2015 | 1995 Jeep Grand Cherokee

1 Answer

My Jeep keeping shutting off, but if I pout it into gear it will stay running


2000 WJ jeep , USA
when STALLS only driving , any time , or just as I come to stop it stalls. or stalls parked only. my guess parked only.
which engine is there?
3.1L
4.0L
4.7L ?
what transmission, what A/T trans, 42rle or ?
mileage comp. like mine, it's useless. forget that. but dead battery reset that, and is of no matter.
questions are plenty on all cases: (cars are complex!)
the engine stalls.? sure.
in to gear means , Drive and Reverse right?
when you do that the PCM adds more air via the ISC idle speed control valve. and just my do that. and is good sign.

  1. besides stalling, does engine and trans work great , driving, like fast /slow, , hot/cold engine, , up hills too, fast?
  2. is the CEL lamp in dash on key on and off running.?
  3. did you check all fuses.
  4. what is miles on engine.
  5. when did it run perfect last, 1 week ago, 1year, 10 years?
  6. ever get and engine tune up this decade? spark parts and filters?
  7. is the ASD relay dropping out just before the stall>?
  8. is engine rpm below 800 RPM before the stall? hot engine.
  9. does engine reach and old full engine temp, 180F or more?
  10. use a scan tool and see all DTC errors yet, dont skip this.


Mar 06, 2015 | 2000 Jeep Grand Cherokee Laredo

1 Answer

Do I need to replace transmission fluid?


Forget the dash reminder gadgets or manufacture
maintenance schedules
You change trans fluid every 3 years
If you want to change at 30,000 miles that's
perfect,just don't go past 3 years & do power
steering at same time

Jul 09, 2013 | Cars & Trucks

1 Answer

Automatic Temp/ Heat works no A/C


make sure the a/c clutch working and the line is cold , let me know .

Nov 28, 2011 | 2001 Mercury Grand Marquis

1 Answer

Maintenance free transmission is slipping


There is NO such thing as a maintenance free trans

I used to own a trans repair business

If you do not change trans fluid on any and all
automatic transmissions every 3 years and
NEVER more than 30,000 miles ,it is like
a death sentence for that trans. Three hot
summers of driving and kiss it good buy.
The oil over heats,and breaks down over time

Todays high tech vehicles run hot, and now have
5,6,7,speeds in them. Two people can not get them
to the work bench, as in the past.
So do you think Mike Rowe's Ford commercials really work?

The Companies that make vehicles do it for one reason. MONEY
They don't care if they last or their dealers techs can get there hands in
around anything, to even work on it. Try it some time

If your trans slips and is 8 or 9 years old, you already exceeded fords life expectancy
They tell you 100,000 miles. Try running a spark plug that long or trans oil,or power steering
fluid.
People are losing trans,steering racks and have all kinds of issues, for decades, because
of lack of common sense,or any knowledge of a vehicles needs. The MFG's love it
They even take your hard earned tax dollars and nothing changes

Dec 01, 2010 | 2002 Ford Explorer

3 Answers

2003 Chevrolet Trailblazer Problems


have you tried running a scan tool to check trans voltages and the valvebody of the trans operation? or even flush and conditioner of the transmission...hope this helps you...

Aug 06, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

No reverse on 95 Dodge intrepid


first check all fuses body grounds because if the trany isnt getting a good ground would cause this problem and if those are all ok the reverse sylinoid failed wich is in the trans.

Feb 01, 2009 | 1995 Dodge Intrepid

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