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Feeling like a lack on power

Old Feb 10, 2015 | 09:30 AM
  #1  
ChunkyB's Avatar
Thread Starter
Newbie
 
Joined: Oct 2014
Posts: 24
Likes: 1
From: De
Year: 97
Model: Grand Cherokee
Engine: 4.0
Default Feeling like a lack on power

Hey guys I want to pick you brain for a moment. I have a 96 grand I'm just at 200k. I feel like this thing is down on power. I've drove many 4.0s and this buy far has no *****. I put a set of 703 injectors in and I'm not positive on this but I think I lost some more torque out of it, but soon as I did that I just bought a 2wd gmc with a 5.3 so it feels like a promod compared to the jeep. I need to check my fuel presure. But I've done the common cap rotor plugs fuel filter. It runs like a top just no tourque. It's got 3.55s and 30/9.50s tires so it shouldn't have this much of a struggle when it locks up to get up to 65mph. O yea I've gutted the cat cus I thought it was clogged and it wasn't.
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Old Feb 11, 2015 | 12:58 PM
  #2  
dave1123's Avatar
Old fart with a wrench
 
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Default

I would think you may have hit on your own cure. Swap back to a set of standard injectors and see if it's ***** come back. Try a set of JY injectors.
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