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2004 2500 Dodge automatic trans

Where is the modulator valve on 2004 Dodge 2500 automatic trans

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Sorry, it doesn't have one.

Posted on May 02, 2010

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1 Answer

Is there a way to adjust the front end camber on a 2005 Dodge Stratus?


Sounds like dirty Trans filter resulting in low charge pressure. Also bad modulation valve function and possible bad governor function. Replace filter first.

May 08, 2017 | Dodge Cars & Trucks

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1986 dodge daytona smokes a lot


Hi Michael, I'm glad to help! When a vehicle starts to smoke, and I'm assuming you talking from the tailpipe. Its alway because there are worn parts, these parts could be anything from: Valve seals, Rings, PCV could be stop up, also on older model like yours, provided it has an auto-trans could be the modulator. This is a round cylinder looking object with a vacuum hose running to it which is attached to the side of the transmission. When it goes bad it will allow trans fluid to slip through it and it runs into the Intake Manifold and smokes out the tailpipe. As you see there are a lot of things that can cause an engine to smoke. You can check the rings by doing a "Cylinder Leak Down Test". The modulator, check it by simply unhooking the vacuum hose and if fluid runs out of the hose then replace the vacuum modulator NOTE: Provided it has a modulator. If both of these are OK, I suggest replacing the valve seals. Hope this helps and have an awesome day Michael.

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Dodge ram 2002 after 5000 rpm it wont shift


I suggest to check trans fluid level and quality (color and odor), other choice could be a valve solenoids problem (if automatic trans). In order to check will need take off trans oil pan.

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1995 Saturn automatic trans. shifting hard enough to brake motor mounts. Any suggestions for fixing


you may need to change the modulator valve on transmission and also check the modulator valve to be sure it's getting the proper vacum to it. the modulator valve controls shifting in the transmission. also suggest lucas transmission treatment be added to transmission fluid, it frees up stuck valves in transmission. hope this helps!!!

Sep 11, 2010 | 1995 Saturn Sl

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I have a 92 dodge diesel 2wd automatic and it wont shift to OD


the valve body has a vavle stuck in the trans you could take it in and have it fixed at a trans shop or take the pan off the trans figure out which is stuck free it up and maybe put a spring behind it if possible on that model.

Feb 05, 2010 | 1992 Dodge Ram 250

1 Answer

Tranny shifts good when cold but as it warms and gets hot shifting is difficult. Fluid is good. Was told it could possibly be modulator valve? Any help? Thanks, Ken


It does not have a modulator valve.But change the fluid and filter in the trans.Use the recommended atf fluid,and add a supplement called lube guard at NAPA.It is for a dodge and Mercron applications.This is a supplement for eliminating friction,and it treats the valve body in the trans.Shifting is easy and should stop your problem.If this does not stop the problem,you will need a new trans.If I can help,let me know,hope I was helpful,don`t always tell you what you want to hear,but it is the truth.

Sep 09, 2009 | 1996 Dodge Ram 1500 Club Cab

1 Answer

Does a 1994 Toyota 4Runner have a Modulator Valve? If so, where would it be located? Also, does it have a Shift Linkage? And if so, where would it be located as well? Thanks!


If your 4Runner has an automatic trans., then it has a modulator valve located on the trans. itself (should have a vacuum hose connected) and whether it's automatic or standard it will have shift linkage that connects the shift lever in the car to the trans's shift shaft.
I hope this helps.

Sep 03, 2009 | 1994 Toyota 4Runner

2 Answers

Can i change my automatic transmission to a standard transmission in my early model 2004 dodge ram 2500 diesel


The short answer is no

the list of replacement parts would most likely exceed $8000, trans, trans control module, engine control modules, complete engine & trans wiring harness, trans, modifacation to the firewall, complete pedal assemblies, and the complete engines were different if look at the specs at dodge.com

Jul 12, 2009 | 2004 Dodge Ram 2500

1 Answer

My nissan sunny GA15DE was overhauled but started having rough idle immediately threafter. what could have caused this? Gerald


Gerald:Was the engine overhauled because of the smoking problem? If so, the auto trans solution is more likely your problem. Good Luck
  • Automatic transmission? - Check vacuum line to transmission . The only line of rubber going to trans. Located where it attaches ro trans and rwmove it watching to see if it contains any trans fluid. If hose has oil in itm Then replace the valve it was attached to. The valve is called a transmission modulator. The diaphragm is rupture and aloowing engine vacuum to **** and burn the fluid. your trans should be needing fluid too often. Modulator around 12.00 last known.
  • Manual transmission ? - PCVvalve not bafflrd against drawing oil from its location in valve cover.and or Pcv valve is defective. Cheap fix-replace

Apr 13, 2009 | 1994 Nissan Sentra 4-Door

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I have a 1989 s-10.The parking brake light blinks six times,pauses then flashes again.I was wondering what trouble code that would be???Thanks.


RWAL Fault codes
Codes for Dodge RWAL, Ford RABS and GM RWAL applications are similar but have a few differences:
  1. Should not occur (replace the controller if it does)
  2. Open isolation valve circuit or defective ABS module
  3. Open dump valve circuit or defective ABS module
  4. Grounded or closed RABS or RWAL valve switch
  5. Excessive actuations of dump valve during ABS braking
  6. Erratic speed sensor signal
  7. Shorted isolation valve or defective ABS module
  8. Shorter dump valve or defective ABS module
  9. High resistance or open speed sensor circuit (resistance should be 1000 to 2500 ohms)
  10. Low speed sensor resistance (Dodge & Ford only)
  11. Open speed sensor circuit (GM only)
  12. Stop lamp switch circuit (Dodge & Ford)
  13. ABS module speed processor (Dodge & Ford only)
  14. ABS module program (Dodge & Ford only)
  15. ABS module RAM memory failure (Dodge & Ford)
To manually clear a stored fault code on GM and some Dodge trucks with RWAL, remove the ABS fuse or disconnect the battery for 5 seconds. Ford RABS codes will automatically clear when the ignition is turned to the off position.

Aug 26, 2008 | Chevrolet S 10 Cars & Trucks

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