Extreme Terrain
4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums


Recent Posts on TrailTalk
Surging on acceleration.
by Trailmonkey - 01/15/22 04:08 PM
Water temperature sensor
by Trailmonkey - 01/15/22 03:58 PM
Sad day for my wife Gen III
by JAVYPRO - 01/12/22 01:04 AM
98 Monty Purchase?? Tranny problem question.
by rxinhed - 01/03/22 12:01 AM
My new Montero Gen 3 Build Thread
by OldColt - 12/31/21 03:53 PM
Happy Holidays
by plh - 12/29/21 11:04 PM
V5MT1 Confusion
by Yellowhammer - 12/29/21 03:25 AM
Support 4x4Wire
New Topics on TrailTalk
Water temperature sensor
by Trailmonkey - 01/15/22 03:58 PM
98 Monty Purchase?? Tranny problem question.
by FireDude - 12/29/21 01:26 PM
Early Gen I trim levels
by Yellowhammer - 12/25/21 04:22 PM
Happy Holidays
by rxinhed - 12/24/21 12:52 AM
2 in lift kit worth it?
by winchtrail - 12/10/21 02:09 AM
Sad day for my wife Gen III
by JAVYPRO - 12/04/21 04:30 PM
4x4 Gallery
Photos of rig
99 Monterrible Sport
Scar the Cylon Raider
Mercenary Sergeant: Code Name "Sapphire"
More News on the 'Wire

Who's Online Now
0 registered members (), 118 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online907
Dec 28th, 2019
Previous Thread
Next Thread
Print Thread
Rate Thread
Loss of power #1046111 05/04/12 01:52 PM
Joined: Oct 2004
Posts: 125
lochabay Offline OP
1997 Sportage, 4x4, auto. Car is experiencing a loss of power. Engine runs good, has new plugs, coils, wires, and coil feed cable. No transmission slippage or other tranny problems. Just very little power. Will barely go up a long hill near my house when it has always gone up this hill with ease. Acts like it has a back pressure problem, but there seems to be plenty of exhaust coming out of the tailpipe. My obd tester has apparently quit as I cannot retrieve any codes. Check engine light is on, although I may have created this when I disconnected the MAF sensor to see if it would make any difference (it did not). As usual, you insights will be appreciated.

Support our sponsors
Re: Loss of power [Re: lochabay] #1046112 05/06/12 01:04 PM
Joined: Mar 2004
Posts: 360
Lou Offline
Not experienced this with mine but from previous threads here, this looks very much like a clogged catalytic. Then I'd proceed to a disconnect and test a bit of extra noise

....you know, the exhaust CANNOT accumulate...ALL the exhaust will eventually go out, otherwise the engine would not run at all....but getting it out with a restriction will require more (back) pressure (thus restricting the intake) , which is precisely what you said ..
There might be a second explanation..but probably not as impairing as what you describe. Knock sensor failure would set a default mode that retards spark...hence less power, but the clogged catalytic is my best guess.

Here's even another hint from "brettclancy" on another forum:
"I removed the #1 converter only to find it mostly empty. Seems the guts of the cat have crumbled and collected in the exhaust pipe between the #1 and #2 cats. "

Re: Loss of power [Re: lochabay] #1046113 05/06/12 11:11 PM
Joined: Aug 2006
Posts: 1,224
Everet Offline
Body Damage is Cool
Your 97 only has 1 catastrophic converter. It sounds like either that or you have slipped some teeth or have a broken/wallowed out key/keyway on the crankshaft for the timing belt gear.
Keep us posted on what you find.

Everet <img src="/forums/images/graemlins/patriot.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

WWW.UPYOURKIA.COM White 96,4x4, man.hubs,K&N filter,3row rad, twin 16" fans, 3" body lift, 4" UPYOURKIA LIFT KIT,265/75 16 TreadWrights on DC2 wheels,140 amp alt. dual batts.
Re: Loss of power [Re: Everet] #1046114 05/07/12 09:02 PM
Joined: Mar 2004
Posts: 360
Lou Offline
everet is right: slipped timing belt is a common issue...that slipped my mind.. <img src="/forums/images/graemlins/smile.gif" alt="" />

Re: Loss of power [Re: Lou] #1046115 06/22/12 02:21 PM
Joined: Oct 2004
Posts: 125
lochabay Offline OP
It was the cat. As I cannot read the codes in that car for some reason, I was reduced to guessing. I guessed fuel pump. I was wrong. Where I live (Pacific island) there are lots of folks below the poverty line. No money is spent on parts that can be avoided. The mechanic I eventually took it to just cut it off and put a straight pipe in without asking me. Anybody who would buy a cat when you can do without it would be regarded as a fool here. Oh, well, there is zero air pollution here, with or without cats. Is not having a cat going to be harmful to the engine? If it's going to cause problems I will go ahead and buy one.

Re: Loss of power [Re: lochabay] #1046116 06/22/12 03:36 PM
Joined: Dec 2007
Posts: 316
homerdog Offline
I ran mine without cats for quite a while with no problems. Some have said there is a loss of low end power on the automatics but I've got a manual transmission and it felt like it had a little more power to me.

2001 Sportage, TJ 106's, Everet spacers and bumpstops, Bilstein shocks on the rear, cone filter, Crager wheels, 235-75-15 Goodyear tires. Custom front winch bumper by Dave Scott. Currently DOA, but it is a work in progress.
2011 Kia Forte EX
Re: Loss of power [Re: homerdog] #1046117 06/23/12 03:51 PM
Joined: Oct 2004
Posts: 125
lochabay Offline OP
I agree. With the new fuel pump and filter and no cat, car jumps like a jackrabbit.

Moderated by  4x4Wire, Axe Man, DamKia 

4x4Wire Social:

| 4x4Wire on FaceBook |

OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting.
Copyright (c) 1999-2019 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.

Powered by UBB.threads™ PHP Forum Software 7.7.3
(Release build 20190728)
PHP: 7.2.34 Page Time: 0.028s Queries: 15 (0.009s) Memory: 2.8502 MB (Peak: 3.1636 MB) Data Comp: Off Server Time: 2022-01-20 08:36:14 UTC
Valid HTML 5 and Valid CSS