LOW POWER ON THE FREEWAY

1997 Jeep TJ

Tiny

97jeep

September, 16, 2010 AT 10:00 PM

Engine Performance problem
1997 Jeep TJ 4 cyl Four Wheel Drive Manual 165000 miles

i have a 97 jeep with the 4cly and when im on the freeway it is hard to get up to 70-75 and when ever I go up a smalll hill or go over an over pass I can not maintain speed, if im going 70 I will slow down to about 63-65 and if by chance I am doing 75 then I slow down to about 60. I had the cat checked and that was fine but they found a very small crack in the header. I have checked the plug gap, wires, and cap and rotor and air filter and replace them all. Where should I think about checking next? People thell me that its just because its a 4 cly jeep but other people that have 4cly jeeps say that they dont have this problem!

FOUND 2502 RELATED QUESTIONS

1 Answer

Tiny

CJ MEDEVAC

September, 17, 2010 AT 11:40 AM

See My Profile,

Imma CJ Guy....Member like you (who answers a lot),

Answering is just one of my hobbies, I am not paid like the certified guys here.

I just try to help and try to stay within my boundries.

My answer may not help much, but here it is anyway!

I do not know your Rig.

1) Have you located 2nd and Higher gears----Try shifting into them!

2) 165000 Miles may tell some of the story--things wear in your engine.

3) Tire Size---stock?.......Wide---Big doesn't help.

4) Have you got a repair manual?....Fuel Economy means Efficency!......They are discussed within.

5) Additives such as Oil stabilizer might "Slicken" the engine up

6) Weght----We will let you hash that out with him/her/other!........I have my Standards, and You have yours.

7) Timing????????? No mention!

8) Vacuum Lines / gaskets and related gizmos broke/worn/deteriorated causing vacuum leaks?

9) Injector Cleaner?

10) You may be able to find a "Performance Chip" for your rig---Maybe....Try 4WD Hardware and Others for this item....if your rig will accept one.......Remember Imma CJ Feller

Explore the CJ 5 and CJ 7 posts other stuff there might interest you!

Here's my 2, No "Sissy" Names for "Rugged"---"Manly" Vehicles:

"Mr. Jeep" 1977 CJ5 258 6 cyl w/ 390 4bbl Holley


http://www.2carpros.com/forum/automotive_pictures/411289_MR_JEEP_SSV_STREET_SURVIVAL_VEHICLE_HIS_GOOD_SIDE_1.jpg



http://www.2carpros.com/forum/automotive_pictures/411289_100_0327_1.jpg



http://www.2carpros.com/forum/automotive_pictures/411289_100_0328_1.jpg



"WILLY" 1946 Willys 4 cyl L-134


http://www.2carpros.com/forum/automotive_pictures/411289_WILLY_ALWAYS_KEEPS__A_STRAIGHT_FACE_1.jpg



http://www.2carpros.com/forum/automotive_pictures/411289_100_0305_1.jpg



http://www.2carpros.com/forum/automotive_pictures/411289_100_0300_1.jpg



Let me know if this stuff helps

I'm here, anytime you want to talk "JEEP"

My Profile reveals stuff I will share if you are interested.

The Medic

Please login or register to post a reply.

Cabin Air Filter Replacement
Cabin Air Filter Replacement Saturn Vue
Cabin Air Filter Replacement Honda Civic
Cabin Air Filter Replacement
Cabin Air Filter Replacement
Cabin Air Filter Replacement Porsche 911
Cabin Air Filter Replacement Chevrolet Tahoe