Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Thread Tools Search this Thread

Old 06-28-2011, 06:34 PM
chris29 chris29 is offline
Learning to use the forums
Join Date: Jun 2011
Posts: 3
Default help

I'M REALLY STUMPED . I purchased a 1998 ranger xlt . it a five speed 4 cly. I can't seem to get the check engine light off . it really lacks power especially going up hills . when you turn the a/c on the rpm surges spuraticly . gas milage is also off quite a bit . here are the replacements ive already made. DPFE, plugs, plug wires, up stream and down stream o2's, new cat,plus complete exhaust. im really needing some help here . im just tired of chasing parts plus, running out money.does anyone know what the problem could be?
Reply With Quote
Old 06-28-2011, 06:36 PM
Christianguy Christianguy is offline
Join Date: Feb 2011
Posts: 2,025
Default Re: help

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle.
Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions.
If the check engine light is flashing a misfire has been detected

Read more:
1999 Ford Ranger XL
Vulcan V6, K&N 33-2106 Filter, 3:73 Gears,
FRONT 3'' Susp Lift/REAR 3'' susp.+ 3" blocks,06 Mirrors
31"/10.5"-15" BFG on AR-172 Polished Rims,Smitybilt Console
95 Mustang Saleen Seats,Alternating Blinker MOD
Pioneer CD/iPod/GPS,6.5 Polk Audio/6.5 Sub-Woofers,
Stainless Bed Extender,Throttle and Dome Light MOD,
12" Tool Box,Billet Grille,NightShade Tint,Projector Headlamps
6000K H.I.D. so i can see at night! LOL

Reply With Quote
Old 06-28-2011, 07:12 PM
Fordzilla80 Fordzilla80 is offline
Welcome to FRF!
Join Date: Oct 2010
Posts: 8,952
Default Re: help

Surging RPMS when under a load such as the A/C sounds to me like the Idle Air Control Valve. However those don't tend to throw codes. You could have more than one problems. Get that code checked out to see what it says.
Reply With Quote
Old 06-28-2011, 07:59 PM
Clinton Clinton is offline
Join Date: Mar 2010
Posts: 14,049
Default Re: help

Yes get the code read for sure, It could be a few things.
Reply With Quote
Old 06-28-2011, 08:32 PM
pink.rocker pink.rocker is offline
Ford Rangers
Join Date: May 2009
Posts: 218
Default Re: help

well the first step, you should take a code reader to your vehicle ( i used a test light and wire)
the amount of blinks is the same as the number it gives you and should continue going in a continues circle.
Anyways, do that first see what it says. if that doesn't help you can try..

take a can of starting fluid and spray around your engine while its running. please watch where you spray!!! (in other words kaboom if the wrong spots) try and get close into the spots to see if there is a leak.

your truck will idol really really funny if you spray and there is a leak or something wrong. I can't guarantee anything and please be careful. that may be a main issue is a leak. who knows.

you can try that for starters ..

who needs AC lol jk
1991 Regular cab Custom interior/exterior, Shag, pink panther, read pearl, rambo, MARIO!
1993 Splash 4.0L, medium lapis blue, step side M.I.A
1999 sport 4.0L, xlt, Amazon green
2002 Edge Chrome yellow, body lift, 33's sold
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search