Inconsistent stumble and stall - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old March 17th, 2014, 09:24 AM
aosias's Avatar
aosias
Status: Offline
Alexandra
1995 D90
Member
 
Join Date: Feb 2006
Location: Boulder, CO
Posts: 1,348
Registry
Inconsistent stumble and stall

1995 D90 has been stumbling a bit at low speed- pulling out of the driveway, pulling away from a stop sign. Not consistent and attributed it to driver's error.

Stalled yesterday and wouldn't start- electronics fine, starting cranking, floored it and wouldn't start but was trying- a little noise from the motor. Let it sit a few minutes. Tried again and it started when I floored it. Let it sit for a few hours and then it fired right up.

I replaced the silver relays a 3 years ago. Not too sure where to start now, thinking maybe a fuel filter- the V8 has an inline one correct?

Thoughts?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old March 17th, 2014, 09:31 AM
down_shift's Avatar
down_shift
Status: Offline
Russell
94' D90 ST & 06' LR3
Member
 
Join Date: Sep 2011
Location: Leesburg, VA
Posts: 4,118
Registry
Replace the stepper motor.
Reply With Quote
  #3  
Old March 17th, 2014, 09:54 AM
rijosho's Avatar
rijosho
Status: Offline
Joshua
1995 Black ST - Rhinolined edition
Research Assistant/Eagle Eyes
 
Join Date: Apr 2009
Location: NYC
Posts: 16,557
Registry
Assuming you have good strong spark and all of that, check the Idle Air Control Valve (IACV) it's behind and to the left of the plenum if looking from the front of the vehicle. I just went with one that is compatible with our engines from an Astro van - $42 and free shipping with Amazon Prime.

Delphi CV10033 Idle Air Control Valve




http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
__________________
Quote:
I am talking purely from an aesthetics standpoint.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old March 30th, 2014, 01:17 PM
Jonesy's Avatar
Jonesy
Status: Offline
Craig
87 D110 (Ruby)
Member
 
Join Date: Dec 2011
Location: Leesburg, VA
Posts: 4,447
Registry
Josh - how did you find out that part was compatible? - Assuming it is that is a saving of $130!!!

I am not sure if it would fit my 95 RRC - so that is why I ask - because i need to replace mine
__________________
"The difference between stupidity and genius, is that genius has its limits." - Albert Einstein
Reply With Quote
  #5  
Old March 30th, 2014, 01:43 PM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
Quote:
Originally Posted by Jonesy View Post
Josh - how did you find out that part was compatible? - Assuming it is that is a saving of $130!!! I am not sure if it would fit my 95 RRC - so that is why I ask - because i need to replace mine
It's common knowledge. Search the board and you'll find many References to Chevy astro
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #6  
Old March 30th, 2014, 04:10 PM
o2batsea's Avatar
o2batsea
Status: Offline
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,503
Registry
Probably not a bad notion to replace the ignition module. A sign of failure are just the symptoms you describe. Or swap it out for the $20 GM one.
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #7  
Old March 30th, 2014, 05:08 PM
Jonesy's Avatar
Jonesy
Status: Offline
Craig
87 D110 (Ruby)
Member
 
Join Date: Dec 2011
Location: Leesburg, VA
Posts: 4,447
Registry
Quote:
Originally Posted by leastonce View Post
It's common knowledge
Might be for your little 3.9/4.0 Defenders...but I have the 4.2 for a 95 RRC - and they are apparently "special"...which is why I wanted to see if there was some type of conversion chart - or replacement chart that lists the variants
__________________
"The difference between stupidity and genius, is that genius has its limits." - Albert Einstein
Reply With Quote
  #8  
Old March 30th, 2014, 05:10 PM
o2batsea's Avatar
o2batsea
Status: Offline
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,503
Registry
Not special.
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #9  
Old March 30th, 2014, 05:43 PM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
Quote:
Originally Posted by Jonesy View Post
Might be for your little 3.9/4.0 Defenders...but I have the 4.2 for a 95 RRC - and they are apparently "special"...which is why I wanted to see if there was some type of conversion chart - or replacement chart that lists the variants
The only thing that is special about your variant of the 14cux fuel injection system is your belief that it is special.... They are all the same POS.
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #10  
Old March 31st, 2014, 10:18 AM
Jonesy's Avatar
Jonesy
Status: Offline
Craig
87 D110 (Ruby)
Member
 
Join Date: Dec 2011
Location: Leesburg, VA
Posts: 4,447
Registry
Quote:
Originally Posted by leastonce View Post
The only thing that is special about your variant of the 14cux fuel injection system is your belief that it is special.... They are all the same POS.
Oh but it is special....
__________________
"The difference between stupidity and genius, is that genius has its limits." - Albert Einstein
Reply With Quote
  #11  
Old March 31st, 2014, 11:16 AM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
Quote:
Originally Posted by Jonesy View Post
Oh but it is special....
Mine is special too! ;-)
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #12  
Old March 31st, 2014, 11:36 AM
leastonce's Avatar
leastonce
Status: Offline
Jason England
D-90 White 95 SW #65
Site Team
 
Join Date: Jul 2009
Location: NYC
Posts: 6,078
Registry
Quote:
Originally Posted by JSBriggs View Post
You both talk funny, so i guess that make you special.








Or at the very least foreigners.

-Jeff
there are very few people who have more than 200 years lineage in this county ... where I come from that makes everyone 'straight off the boat'
__________________
Quote:
Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
Car Camping Collective founding member and Chief Executive Officer
Cat Camping Collective founding member and Chief Executive Officer
Reply With Quote
  #13  
Old March 31st, 2014, 11:45 AM
rover4x4's Avatar
rover4x4
Status: Offline
Phillip
1995 SW #487/500
Member
 
Join Date: Sep 2003
Location: The Old North State
Posts: 7,526
Registry
is one ignition module better than another. My RRC runs well sometimes and runs like dookie other times. I have a used ignition module relocation installed from a 94. The vac advance works, ive lubed the weights and use genuine cap and rotor. A quick review of rockauto shows a few options AB has one for 72 rockauto is around 40. Im a complete cheapfuck but Id like to save a few dollars, is there any reason to buy the "lucas" module?
__________________
Poor gas mileage gets you to the best places on earth
Reply With Quote
  #14  
Old March 31st, 2014, 01:06 PM
sloanfiske's Avatar
sloanfiske
Status: Offline
Anthony Nelson
97 D90 SW
Member
 
Join Date: Mar 2008
Location: New York
Posts: 435
Registry
Buy the Lucas. And get a set of genuine leads to go with the cap and rotor. Between the new relo of the Lucas ign amp, gen cap/rotor, and new genuine ignition wires, my 94 classic never ran better. I tried all the hocus pocus stuff and short of changing the dizzy, once those things were changed out, it was what I should have done years ago.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
3.9 stumble stall code 44 rover4x4 Defender Technical Discussions 5 April 4th, 2009 02:39 PM


All times are GMT -5. The time now is 11:13 AM.


Copyright