Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > 2nd Gen Ram Tech
Sign in using an external account
Register Forgot Password?


2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

1996 dodge ram 1500 4wd 5.9l magnum idle issues

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 06-30-2013, 10:28 AM
TraciAsher TraciAsher is offline
Registered User
 
Join Date: Jun 2013
Posts: 3
Default 1996 dodge ram 1500 4wd 5.9l magnum idle issues

Have a 1996 ram 1500 5.9l and am having idle issues. Idle will drop when at a light, stop signs, or when sitting at idle. When the idle drops, there is a loud sucking sound at the throttle body. Sometimes the idle will kick back up other times it will die. Also have some issues with loss of power while driving. Have replaced throttle body, plenum gasket, intake gasket, throttle body gasket, map sensor, IAC, throttle position sensor, all fuel injectors, distributor, plugs and wires, timing chain, head gaskets, heads, header pipes,header gaskets, transmission rebuilt with a tow package and shift kit, fly wheel and torque converter replaced, new alternator and battery, and the ignition coil. There is a crack in the air box, not sure if this could be causing the problem? All of the sensors have been replaced numerous times. This is getting very frustrating as we believe that the problem is a simple fix, but nobody can figure out what the problem is? Many of our friends, my husband included, are mechanics (some backyard and some schooled), and nobody can figure out the problem. Please help!
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 06-30-2013, 12:21 PM
zman17's Avatar
zman17 zman17 is offline
Section Moderator
Dodge Forum Moderator
 
Join Date: May 2008
Vehicle: 2000 2500HD 4x4 5.9
Location: NH
Posts: 18,729
Default

Welcome to DF. Sounds like clogged cat and bad o2 sensor. I'll move your post to the 2nd gen ram section. The new member section is just for intro purposes.
__________________
2000 2500HD 4X4 5.9 and 4:10's,HF tuned SCT,Red-Head gear box, HS 1.7's,
50mm Fastman TB, Hughes Plate,2" Hell Bent ,Volant CAI
Flowmaster 50 series, Rock Solid Ram Steering fix,B&M trans cooler,fuzzy dice good for 5HP

Last edited by zman17; 06-30-2013 at 02:25 PM..
Reply With Quote
  #3  
Old 06-30-2013, 02:21 PM
dhvaughan's Avatar
dhvaughan dhvaughan is offline
Hall Of Fame
 
Join Date: Jul 2006
Vehicle: 01 1500 4wd
Location: Gainesville, Ga.
Posts: 12,207
Default

Quote:
Originally Posted by TraciAsher View Post
Have replaced throttle body, plenum gasket, intake gasket, throttle body gasket, map sensor, IAC, throttle position sensor, all fuel injectors, distributor, plugs and wires, timing chain, head gaskets, heads, header pipes,header gaskets, transmission rebuilt with a tow package and shift kit, fly wheel and torque converter replaced, new alternator and battery, and the ignition coil. There is a crack in the air box, not sure if this could be causing the problem? All of the sensors have been replaced numerous times.
^ holy cow. that's everything.

the sucking sound is the normal sound of the IAC opening up more to try and maintain idle.

do this - rent a compression tester from your local parts store and do a compression test. write down the numbers and report back.
__________________
01 1500 Reg Cab 4wd 5.2 auto 3.55 285/75/16 steps tow hooks sc3815 180 3923 trans cooler filter posilok powertrax (removed) timbren britebox pioneer head rockford amp speaker cobra cb firestick hughes plenum water pump timing chain oil pump rear main hub bearings brakes shocks cracked dash cad bushings seals ujoints trackbar tcase Robert Griffin Trans

Last edited by dhvaughan; 06-30-2013 at 02:39 PM..
Reply With Quote
  #4  
Old 06-30-2013, 02:27 PM
Ham Bone's Avatar
Ham Bone Ham Bone is offline
Champion
 
Join Date: Aug 2011
Vehicle: 01 Ram 1500 4x4
Location: Blacksburg, VA
Posts: 3,211
Mr Lambman
Default

You could reset your PCM. Worth a try.

Sounds like you have a bad IAC
Reply With Quote
  #5  
Old 06-30-2013, 02:29 PM
zman17's Avatar
zman17 zman17 is offline
Section Moderator
Dodge Forum Moderator
 
Join Date: May 2008
Vehicle: 2000 2500HD 4x4 5.9
Location: NH
Posts: 18,729
Default

Quote:
Originally Posted by dhvaughan View Post
^ holy cow. that's everything.
Except for cat and o2, (unless of course it's just not listed) plus it's stated that there is a power loss.
__________________
2000 2500HD 4X4 5.9 and 4:10's,HF tuned SCT,Red-Head gear box, HS 1.7's,
50mm Fastman TB, Hughes Plate,2" Hell Bent ,Volant CAI
Flowmaster 50 series, Rock Solid Ram Steering fix,B&M trans cooler,fuzzy dice good for 5HP
Reply With Quote
  #6  
Old 06-30-2013, 03:05 PM
TraciAsher TraciAsher is offline
Registered User
 
Join Date: Jun 2013
Posts: 3
Default

IAC just replaced for the third time yesterday.
Reply With Quote
  #7  
Old 06-30-2013, 03:06 PM
TraciAsher TraciAsher is offline
Registered User
 
Join Date: Jun 2013
Posts: 3
Default

replacing O2 sensor today, and have not cat due to header pipes. How to reset PCM? I read to unhook negative battery cable, turn key to start position for 30 seconds then reconnect the cable. did this this morning and it did not work. is there another way to reset? We also ordered new positive and negative battery cables, and crankshaft position sensor, which will be in tomorrow. I will have to tell my husband about renting the compression tester and see if we can figure something out.

Last edited by TraciAsher; 06-30-2013 at 03:14 PM.. Reason: added to original
Reply With Quote
  #8  
Old 06-30-2013, 03:58 PM
zman17's Avatar
zman17 zman17 is offline
Section Moderator
Dodge Forum Moderator
 
Join Date: May 2008
Vehicle: 2000 2500HD 4x4 5.9
Location: NH
Posts: 18,729
Default

Remove the negative cable BEFORE replacing any sensor. While you do the work the PCM will be reset by the time your done. And what brand parts are you getting? What brand is the IAC for instance? And what brand are you getting crank sensor? And was the distributor replaced or just the cap and rotor?
__________________
2000 2500HD 4X4 5.9 and 4:10's,HF tuned SCT,Red-Head gear box, HS 1.7's,
50mm Fastman TB, Hughes Plate,2" Hell Bent ,Volant CAI
Flowmaster 50 series, Rock Solid Ram Steering fix,B&M trans cooler,fuzzy dice good for 5HP

Last edited by zman17; 06-30-2013 at 04:00 PM..
Reply With Quote
  #9  
Old 06-30-2013, 04:13 PM
dhvaughan's Avatar
dhvaughan dhvaughan is offline
Hall Of Fame
 
Join Date: Jul 2006
Vehicle: 01 1500 4wd
Location: Gainesville, Ga.
Posts: 12,207
Default

Quote:
Originally Posted by TraciAsher View Post
IAC just replaced for the third time yesterday.
iac - replace once, maybe twice if it acts different but still bad. after that move on to something else. the TPS has a interaction with idle, but since you've replaced it already, it rules it out.

the only sensors you haven't replaced yet are crank position and cam position. both are a little hard to reach and you're not experiencing stalling/no start, so there's no obvious reason to change them.

i didn't see PCV valve replacement? that's an easy and cheap one, and if bad, can cause a real bad vac leak.

has anyone with an expensive scanner done any checking yet?
__________________
01 1500 Reg Cab 4wd 5.2 auto 3.55 285/75/16 steps tow hooks sc3815 180 3923 trans cooler filter posilok powertrax (removed) timbren britebox pioneer head rockford amp speaker cobra cb firestick hughes plenum water pump timing chain oil pump rear main hub bearings brakes shocks cracked dash cad bushings seals ujoints trackbar tcase Robert Griffin Trans
Reply With Quote
  #10  
Old 06-30-2013, 05:13 PM
Ham Bone's Avatar
Ham Bone Ham Bone is offline
Champion
 
Join Date: Aug 2011
Vehicle: 01 Ram 1500 4x4
Location: Blacksburg, VA
Posts: 3,211
Mr Lambman
Default

Also, double check ALL your grounds
Reply With Quote
Old 06-30-2013, 05:13 PM
 
 
 
Reply




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

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 08:54 AM.

Internet Brands, Inc.


Contact Details & Emails