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'97 XJ steady miss?

eightsevenzero

NAXJA Forum User
Location
San Antonio, TX
Hey,

Just bought a bone stock '97 with 4.0 and manual tranny, 147K on the clock. It idles at steady at 700 rpm but has a miss hiccup every second or so. Also when driving you can feel it ever so slightly continuously stumble under acceleration. No codes are being thrown and it actually has good power overall. Here's a list of stuff I've done to try and fix the issue:

New CPS
New Plugs, Dizzy cap, rotor, and wires
Fuel pressure test, holds 49 PSI steady

My next thing to try is maybe a can of Seafoam to see if it temporarily helps. Any ideas? Thanks!
 
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