Gas is a go....??? - 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 06-25-2004
Member
Thread Starter
 
Join Date: Jun 2004
Location: Wasilla. Alaska
Posts: 13
I figure with a catchy title more people would read. not sure where to post this so here it goes.


Ok, so when i take my truck outta gear it continues to get gas and rev up to like 3k + rpms... no i dont have my foot on the pedal. it settles down after several seconds but suxs because it seems like i am reving my engine everywhere i go..... any ideas?
Reply With Quote
  #2  
Old 06-25-2004
Member
 
Join Date: Jun 2004
Location: Lakeland, FL
Posts: 111
Addictions...

i am not sure why it does it, but my 98 ranger also does it, i took it to the ford place and they couldn't find a problem, it may just being sticking like mine does everynow and then...

kevin
Reply With Quote
  #3  
Old 06-25-2004
Wowak's Avatar
Member
 
Join Date: Jun 2004
Location: Merritt Island, FL
Posts: 2,223
Is your truck a manual or an automatic? If its an automatic, why are you taking it out of gear (except to put it in reverse or park?)
Reply With Quote
  #4  
Old 06-25-2004
Member
 
Join Date: Jun 2004
Location: Lakeland, FL
Posts: 111
i will never understand women nor my ROOMMATE...

well mine is manual...
Reply With Quote
  #5  
Old 06-25-2004
Wowak's Avatar
Member
 
Join Date: Jun 2004
Location: Merritt Island, FL
Posts: 2,223
if its a manual I would assume theres some problem with the synchros trying to rev-match the engine, or its a sticky throttle.
Reply With Quote
  #6  
Old 06-25-2004
Member
 
Join Date: Jun 2004
Location: Montgomery, AL
Posts: 180
I would say a sticky throttle. The engine can't rev without air.
Reply With Quote
  #7  
Old 06-25-2004
RescueRangerFX4's Avatar
Member
 
Join Date: Jun 2004
Location: montreal,quebec
Posts: 154
Possiblilty the TPS = throttle postion sensor is defected or dirty. test it and clean it out and see what happens. Also It's a good idea to pull the code a get a reading to pin points the problem even though if you don't have a check engine light on yet and it could still pull a code sometimes!!!!
Reply With Quote
  #8  
Old 06-25-2004
Member
 
Join Date: Jun 2004
Location: Lakeland, FL
Posts: 111
do remember in the past my check engine light came on one or two times and that was the reason was the TPS...

kevin
Reply With Quote
  #9  
Old 06-25-2004
FoMoCoFiddy's Avatar
Member
 
Join Date: May 2004
Location: Smackdownville Tx
Posts: 4,508
Yea, thats the TPS, it was happening to my friends stang, lol

we had to fix it, off road h-pipe and mac exhasut, wasnt too quite..lol

but we just cleaned the TPS and it was fine after that
Reply With Quote
  #10  
Old 06-25-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Quote:
Originally Posted by Dumbnutofak
I figure with a catchy title more people would read. not sure where to post this so here it goes.


Ok, so when i take my truck outta gear it continues to get gas and rev up to like 3k + rpms... no i dont have my foot on the pedal. it settles down after several seconds but suxs because it seems like i am reving my engine everywhere i go..... any ideas?
Get some electronic contact cleaner, disconnect battery,disconnect wiring harness from MAF, remove your MAF from the air box and intake tube, douse MAF and sensor liberally with contact cleaner, air dry (not compressed air), reinstall/plug in MAF, reconnect battery, go for a drive.

Or, shift at 3500 rpm. I had to do this for a few days myself, before I did the above.
Reply With Quote
  #11  
Old 06-25-2004
gatorblue92's Avatar
RF Veteran
 
Join Date: Jun 2004
Location: Delaware
Posts: 8,238
its the tps... my old 92 did that and i did the same thing biged posted and it fixed the problem
Reply With Quote
  #12  
Old 06-26-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Quote:
Originally Posted by gatorblue92
its the tps... my old 92 did that and i did the same thing biged posted and it fixed the problem
TPS are generally "good" or "bad" and cannot really be "cleaned". When they are "bad", acceleration becomes very difficult.

IAC motor's can become dirty, usually the symptons are "hunting" for idle speeds. These can be cleaned, however eventually they need to be replaced.

The symptons described in the first post indicate deposits on the heated wire in the MAF sensor. I would guess that you are running a K&N filter, or some other cotton/mesh and oiled filter.

The MAF uses a heated wire to determine airflow by rate of heat exchange, deposits on these wires gives false heat exchange rates. Normally, the MAF sensor does not go bad, it either breaks or becomes dirty. So before you clean it like stated above, check to see if there is a broken filament, you should be able to see this in the sample tube.
I think you can see them in this picture:


While you have it out, you could try this
Reply With Quote
  #13  
Old 06-28-2004
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
The MAF is not capable of making the engine speed up. Just disconnect the MAF if you want to rule it out. The only thing that can increase engine speed is the idle air control, or an intake air leak.
Reply With Quote
  #14  
Old 06-28-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Quote:
Originally Posted by Dave and Julie
The MAF is not capable of making the engine speed up. Just disconnect the MAF if you want to rule it out. The only thing that can increase engine speed is the idle air control, or an intake air leak.
True...idle air control will increase engine speeds, usually while trying to idle. However, while accelerating, your MAF plays a pretty big part in how much fuel you are getting. Though the the MAF does not control your idle speeds, when you unplug it, your idle changes.

I had the same symptons as described in the first post of this thread, I was fortunate that the only thing required for me to do was clean the MAF.
Reply With Quote
  #15  
Old 06-29-2004
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
The MAF only controls the amount of fuel, to a degree. You cannot increase idle by adding more fuel, only by adding more air. Also bear in mind that the 5 wire MAFs they use these days also contain the IAT sensor. When you disconnect the MAF the engine thinks the intake air temperature is -40 degrees, which causes it's own set of problems. The right way to see if your MAF is the problem is to run a MAF contamination test with the Ford diagnostic tool.
Reply With Quote
  #16  
Old 06-29-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Quote:
Originally Posted by Dave and Julie
The MAF only controls the amount of fuel, to a degree. You cannot increase idle by adding more fuel, only by adding more air. Also bear in mind that the 5 wire MAFs they use these days also contain the IAT sensor. When you disconnect the MAF the engine thinks the intake air temperature is -40 degrees, which causes it's own set of problems. The right way to see if your MAF is the problem is to run a MAF contamination test with the Ford diagnostic tool.
Agreed. The original question was asked by the owner of a '94 3.0. I don't believe the IAT was integral with the MAF that year.
Also, the engine speed was increasing after he pushed in the clutch to upshift.
Reply With Quote
  #17  
Old 06-30-2004
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
Good point. Sometimes the strategy does that, messes with the engine revs between shifts. The SVT focus is infamous for it.
Reply With Quote
  #18  
Old 06-30-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Quote:
Originally Posted by Dave and Julie
Good point. Sometimes the strategy does that, messes with the engine revs between shifts. The SVT focus is infamous for it.
Two questions for you/ya'll if you don't mind,

What do you do for a living?

Do you own an SVT Focus, and if so, do you like it?
Reply With Quote
  #19  
Old 07-01-2004
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
I am a dignostic validation technician working for Cosworth under contract for Ford.

What do you do?

I do not own a focus, but I knew someone that did who complained about revs between shifts. I've also read about it in car mags.
Reply With Quote
  #20  
Old 07-01-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Man, send me an application!

I am a maintenance technician for Nestle Waters of North America.
Reply With Quote
  #21  
Old 07-02-2004
Member
 
Join Date: Jun 2004
Location: outside Detroit, where it's safer
Posts: 874
You sure you want to move to Detroit?

Nestle as in quik?
Reply With Quote
  #22  
Old 07-02-2004
Member
 
Join Date: Jun 2004
Location: Arlington, Texas
Posts: 30
Posaible??

Well, not real sure about living in Detroit, but I would not rule it out.

Yes, Nestle as in Quick and Butterfingers (among a million others including pharmaceuticals). I happen to work for one of their water bottling plants. Much cleaner than sugar and syrup.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
very low gas mileage and smell of gas Smith13 4.0L OHV & SOHC V6 Tech 4 12-29-2014 03:26 PM
2.3 gas tank to 4.0 gas tank, fuel pump q njdriver04 DOHC - 2.3L Duratec / Mazda L Engines 1 09-13-2012 11:43 AM
No gas gage, gas smell by the bed, pictures CadiLLacPimPin General Ford Ranger Discussion 8 01-23-2007 08:57 PM
do k&n air intakes save gas or lose gas RangerEdge17 4.0L OHV & SOHC V6 Tech 26 09-19-2006 03:03 PM
I spilled gas in my freakin' truck.... Bent XLT Auto Detailing 101 16 06-16-2004 01:59 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 05:32 PM.


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.