Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Ford > Ranger | Courier
Register FAQ Community Arcade Calendar
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 07-20-2004, 07:52 PM   #1
fastpurplewillys
AF Newbie
 
Join Date: Jul 2004
Location: Scappoose, Oregon
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Power Flucuation 98 ranger

1998 Ranger, 2.5L,5 speed, 2wd, standard cab, 105000 miles, no a/c, 3.45 gears

Problem: While driving (30-40 mph 3rd gear, 40-45 mph 4th gear, 55-65 mph 5th gear) the engine will loose power as if it has died, normaly downshifting and flooring it brings back the power. Once and a while the problem has lasted long enough to force me to pull over. Engine has never fully died and the service engine light remains off. The the throtle also sticks in the no throtle position and octain knock has become a frequent problem in the last 3000 miles. The engine always fires right up, has new plugs, wires, and air filter.

Any suggestions would be greatly appreciated.
fastpurplewillys is offline   Reply With Quote
Old 07-22-2004, 11:48 AM   #2
fordfury94
AF Newbie
 
fordfury94's Avatar
 
Join Date: Jul 2004
Location: Youre house with youre mommy, Maryland
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to fordfury94
Re: Power Flucuation 98 ranger

so when youre at a steady pace, do the rpms fluctuate irregulary? or does it just lose power and die down
__________________
------------94 Ranger XLT 4x4-------------
-Cold air intake system
-flowmaster 40
-Apten Chip
-other "free" mods
~clear corners
~completely clear tails w/ red covers
~billet grill
~pilot fogs
~painted interior
~alot of Ford Racing accessories
fordfury94 is offline   Reply With Quote
Old 07-22-2004, 03:41 PM   #3
fastpurplewillys
AF Newbie
Thread starter
 
Join Date: Jul 2004
Location: Scappoose, Oregon
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Power Flucuation 98 ranger

I just loses power and acts as if it has been shut off. The RPM stay smooth, though drop off with the drop in power.
fastpurplewillys is offline   Reply With Quote
Old 07-22-2004, 07:13 PM   #4
Car Pal
AF Enthusiast
 
Join Date: Jul 2004
Location: rochester, New York
Posts: 116
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Power Flucuation 98 ranger

the t.p. sensor could be getting stuck as a result from the throttle sticking. the lever in the throttle body needs to be lubed with oil. take the cover off the throttle body and remove the cable and feel the lever action. if it is tight,squirt some oil on the rod and work it in.
Car Pal is offline   Reply With Quote
Old 07-28-2004, 11:46 PM   #5
CanadianRanger
AF Regular
 
Join Date: Jul 2004
Location: Vineland
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Annoying Octane Knock

I have a very similiar problem, though not as pronounced. The truck is a 93 ranger 3.0l five speed 4x4. It seems to not have a lot of power in 3rd and fourth gear but has tons in first and second. Also in 3rd and fourth at high rpm or under medium loads it has this really annoying octane knock, that i can't seem to get rid of. People have told me several things cause this (and i have tried higher octane fuel which only slightly helps), the most common they tell me is a very large carbon buildup in the cylinders, but i have run through countless bottles that claim to get rid of this buildup. I was wondering if anyone has any other ideas of what may be causing this. Thank You
CanadianRanger is offline   Reply With Quote
Old 07-29-2004, 12:25 PM   #6
fordfury94
AF Newbie
 
fordfury94's Avatar
 
Join Date: Jul 2004
Location: Youre house with youre mommy, Maryland
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to fordfury94
Re: Power Flucuation 98 ranger

many older Ranger owners do a simple mod called the Hot water Bypass that helps stop pinging. there are two coolant lines running through youre upper intake manifold. what you do is simply disconnect those lines from the manifold and directly to eachother using some kind of small water pipe connector. they are there to prevent throttle icing, but that isnt an issue anyway. This makes youre intake alot cooler, and can also increase HP.
__________________
------------94 Ranger XLT 4x4-------------
-Cold air intake system
-flowmaster 40
-Apten Chip
-other "free" mods
~clear corners
~completely clear tails w/ red covers
~billet grill
~pilot fogs
~painted interior
~alot of Ford Racing accessories
fordfury94 is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Ford > Ranger | Courier


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



All times are GMT -5. The time now is 06:29 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts