JENSSEN Posted March 22, 2012 Share Posted March 22, 2012 So after 2 weeks of throwing parts at the "new" 1988 Manche trying to fix the stumble at intersections and rough idle I sat down and though about simple stuff. Ok so I did cap, rotor, fuel treatment, TBI cleaning, o2 sensor, checked vacume lines, EGR, MAP sensor all the typical stuff, still rough idle,.... Then I thought about the o2 sensor and the colour of it,.. And all I could think is if that was a plug that's lean! So I did a fuel gas test at the manifold and no change, so I went a level more simple grabbed a wrench and checked bolts on the intake and exhaust,... One on the exhaust was missing and the next loose, 3/4 - 1 full turn and fawk me it runs amazing! Now an oil change and rocker arm retorque ( a bit noisy ) ,... Finally it purrs!! Viva 2.5L tower of power! Guess a 4.0 swap will have to wait! Link to comment Share on other sites More sharing options...
Dirteatr717 Posted March 22, 2012 Share Posted March 22, 2012 Same with me today :doh: thought my slave went so I started takingthe crossmember off and spraying every nut and bolt with pb blaster.... Ate some lunch did some research, came back to it a few hours later and just looked around underneath my truck to notice the clutch line blown open... Not a bad fix at all, just have to locate one :roll: Link to comment Share on other sites More sharing options...
vaquaro Posted March 22, 2012 Share Posted March 22, 2012 :thumbsup: Did you ever think the learning curve on our trucks is actually a vertical line ??? :cheers: So after 2 weeks of throwing parts at the "new" 1988 Manche trying to fix the stumble at intersections and rough idle I sat down and though about simple stuff. Ok so I did cap, rotor, fuel treatment, TBI cleaning, o2 sensor, checked vacume lines, EGR, MAP sensor all the typical stuff, still rough idle,.... Then I thought about the o2 sensor and the colour of it,.. And all I could think is if that was a plug that's lean! So I did a fuel gas test at the manifold and no change, so I went a level more simple grabbed a wrench and checked bolts on the intake and exhaust,... One on the exhaust was missing and the next loose, 3/4 - 1 full turn and fawk me it runs amazing! Now an oil change and rocker arm retorque ( a bit noisy ) ,... Finally it purrs!! Viva 2.5L tower of power! Guess a 4.0 swap will have to wait! Link to comment Share on other sites More sharing options...
JENSSEN Posted March 23, 2012 Author Share Posted March 23, 2012 Well with the 2.5L Motor I would agree! I know a 4.0L like the back of my hand, I can figure those out usually pretty damn quick. Now with owning 3 Comanches , two of which are 2.5L ones I feel that I will know those really well shortly as well LOL Link to comment Share on other sites More sharing options...
vaquaro Posted March 25, 2012 Share Posted March 25, 2012 :idea: I realized it had been awhile since I checked the manifold bolts ( thanks to your post ) YUP they were loose as well , tightened for now but next weekend new gaskets ,lock-tite , and re-torque :thumbsup: Link to comment Share on other sites More sharing options...
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