99 2.5L auto poor pedal response. - Ranger-Forums - The Ultimate Ford Ranger Resource


General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-17-2007
zabeard's Avatar
who?
Thread Starter
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
99 2.5L auto poor pedal response.

Well since my truck isnt in the best of shape i have been driving a 99 2.5L(i think) and its an auto.

when i go to take off i push the pedal... push the pedal.... then it freaking goes! like it has a big dead spot. it almost wants to die in that time period as well. only has 45k miles on it

kinda strange. but has anyone had this issue before? anyway to fix it? sensor maybe?
Reply With Quote
  #2  
Old 01-17-2007
Needforspeed3685's Avatar
Member
 
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
No sensors, no internal problems. Here's the quickest fix you'll ever do!

As your truck gains age, the throttle cable stretches. This stretching causes slack at the throttle pedal and leaves a "dead spot" just like you have described.

Take a Zip-tie and cram your head up under the dashboard so you can see the TOP of the throttle pedal. You'll see the throttle cable coming through, with a plastic stopper at the end retaining the spring.

Pull the throttle cable towards you (away from the firewall) so that all the slack is out. Now place the Zip-Tie on the cable to keep the slack out.

This will slightly tension the cable so it provides better and faster throttle response!

If you'd like more info, do a search on "Throttle Cable Mod", or just reply on here and I'll see what I can do.
Reply With Quote
  #3  
Old 01-17-2007
Needforspeed3685's Avatar
Member
 
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
If you don't think this is the problem, or if you've already done the Throttle cable mod, check out the IAT sensor mod. It will cause a SLIGHT decrease in gas mileage, but you'll gain lots of low-end "get up and go" torque and response!

I put my IAT mod on an A/B switch so I can return to "stock" if I want good gas mileage or the weather is cold. When it's humid or I want to go fast, I add resistance to my IAT circuit by activating the switch and dialing in the amount of resistance on my potentiometer.

I've been driving with my IAT resisted for years now, with no adverse effects!
Reply With Quote
  #4  
Old 01-17-2007
zabeard's Avatar
who?
Thread Starter
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
i thought about the throttle cable mod.. i might look into that.
Reply With Quote
  #5  
Old 01-17-2007
Level III Supporter
iTrader: (2)
 
Join Date: Jun 2004
Location: usa
Posts: 24,936
can of injector cleaner maybe help too. it might be the trans slipping a filter change and fluid flush wouldnt hurt it idk hard to say with out seeing it
Reply With Quote
  #6  
Old 01-17-2007
JoshK's Avatar
Member
 
Join Date: Sep 2006
Location: CC, Indiana
Posts: 3,832
My moms saturn does that. Its just a sticking cable.
Reply With Quote
  #7  
Old 01-18-2007
zabeard's Avatar
who?
Thread Starter
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
yea im changing my mind more and more seems like a sticky cable or something is catching on it. not really a dead spot.
Reply With Quote
  #8  
Old 01-18-2007
Needforspeed3685's Avatar
Member
 
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
Quote:
Originally Posted by zabeard
yea im changing my mind more and more seems like a sticky cable or something is catching on it. not really a dead spot.
Did you check the slack in the throttle cable yet?
Reply With Quote
  #9  
Old 01-18-2007
zabeard's Avatar
who?
Thread Starter
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
no school/work has kept me occupied from 6am-11pm

but i might have time tonight
Reply With Quote
  #10  
Old 01-18-2007
Needforspeed3685's Avatar
Member
 
Join Date: Aug 2005
Location: Lowell, AR
Posts: 1,836
Quote:
Originally Posted by zabeard
no school/work has kept me occupied from 6am-11pm

but i might have time tonight
Come on man...you can do it when you're getting into the truck, before you head to school, work! All you need is a zip-tie or two and maybe a flashlight!
Reply With Quote
  #11  
Old 01-18-2007
n3elz's Avatar
RF Veteran
 
Join Date: Jun 2004
Location: Kennett Square, PA
Posts: 10,620
If it's hesitating or stuttering it's definitely NOT the cable.

My daughter's 98 was getting like that, then I ended up having to replace the MAF when it died.

Not sure how accurate your symptoms were on that.

A bad TPS or something wrong in the shaft going into it machanically can also cause problems. The PCM learns it's idle strategy and when to use it based on TPS position. Having a TPS signal that doesn't change properly as the throttle is opened can cause problems like you describe.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Want to Buy: 95 or newer Ranger auto pedal assembly Topdog2007 Engine & Drivetrain 8 03-05-2010 04:02 PM
4.0 OHV Auto, Running cold? Poor Gas Mileage. koocuz 4.0L OHV & SOHC V6 Tech 43 03-15-2009 11:00 PM
2005 3.0 5sp auto Hard shift light pedal? RangerSkippyRoo Drivetrain Tech 4 02-22-2008 06:36 PM
Throttle Response thebillsman 4.0L OHV & SOHC V6 Tech 15 10-31-2005 07:05 AM
Question for anyone with a high output alternator, need response FAST Gearhead61 General Technical & Electrical 7 05-28-2005 01:50 AM


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



All times are GMT -6. The time now is 10:18 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.