ratrapp

my 88 4.0 aw4 has 3.55s as well.

i just got through making many improvements on the mj while on vacation.i added a new hesco w/p,high flow housing and t-stat,professional products balancer,alternator,belt,idler pulley,oil filter adapter o-rings,2 1/2 aluminized exhaust with 2-chamber flowmaster and slightly larger grand cherokee front sway bar.now my damn tailgate handle broke.does anyone know if a new handle is still available?

i second the intake bolts.even after loctite mine would work loose and cause a vacuum leak and a very high idle.if replacing injectors fixed a high idle it was because the lower o-rings were bad causing a vacuum leak,not the injectors themselves.i would use some water in a squirt bottle or some carb cleaner to look for vacuum leaks.

i've had several redtops.some last forever and others seemed that if they got run down they would not hold a charge.i used to friends with the local advance auto manager and he would let me have them for about $95 but he moved and now they want a ridiculous price for them and imo they're not worth it.

try justgastanks.com.i got one made from plastic for a customers 78 j20.no one else made anything even out of metal except them.

mines starting to do the same thing.professional products has a nice replacement one from summit for $72 but it's been on backorder for almost 2 months.napa can get pp parts but i haven't tried them yet.

i'm on my 3rd pump and 2nd tank.

my factory fuel pump was pretty quiet.the first time it went out i replaced it with a mopar pump and it was quiet.that pump lasted about 6 years and when it died i put a carter pump in it from the local federated store and it's louder than my 255 lph pump in my mustang.as long as it works i can live with it.

i put redline 75w 90 synthetic in my 88 about 8 years and 60k miles ago.i haven't lost a drop and it sure doesn't hurt anything.the only thing i've seen about synthetics not being included in a warranty is my little brothers auburn posi unit in his 80 malibu and my friends moroso posi in his 72 chevelle wouldn't be covered if it failed if they found synthetics.

i put the dynomax catback on the gf's 95 4.0 zj and it fits and sounds great.it definitly doesn't sound stock.

i had a dynomax superturbo on mine for a few years.it was alittle louder than stock but not so loud it was annoying.they're not real expensive.on the same note i like loud exhaust so i went back with a flowmaster 2 1/2 and 2 1/ 2 aluminzed tailpipe and high flow catco converter.

i wouldn't use it in my vehicle but i had just done a valve job on a guys 4.3 astro van and his rear main was leaking as well.he couldn't afford to fix both but 4 months later and it's still holding up not leaking.

i picked up some stuff at advance auto for like $18 that i think was in a gray bottle.i put it in a 92 astro van that was pouring and in about 2-300 miles it quit leaking.for $18 it's worth a try.

i think i'm going to go with the ho-head and just port the renix intake as well.it seems alot easier than dealing with the throttle body issue.

mine was doing this a couple of months ago.i was leaving work and it would usually bog then it would eventually pick up and go but that day the fuel pump decided to finally die.

over tightening a belt can ruin a new waterpump quick or you just could've got a bad one.some reman's aren't as good as new ones.

i did the valve cover fix as well.not a drop of oil in the air box.i spent $20 on a cover,$35 on a gasket and $1 on a fitting.it is well worth the effort and isn't as hard to do as you may think.

i changed over to an open system cheaper than that tank.

you've never seen a first gen. dodge neon head then.trust me it's the head gasket seeping as others will testify too as well.

as long as they'll bolt on then i'll upgrade the intake at a later time.

i wasn't aware the bolt patterns are different for the manifolds.i just put a new exhaust manifold on and really don't want to fool with tb issue just yet.i can get a 91-95 head for less than a $100 from the local junkyard if i pull it myself.i just wanted to get a head already done and ready to swap on the same day as right now my mj is my only running vehicle as i haven't had time to put my 393 back in my mustang.i may just put up with the head gasket seeping oil.it's definitly the head gasket because i switched to the new style steel valve cover and fel-pro perma seal gasket and my valve cover has never been that dry and no more oil in air box.thanks for help,guys.

umm,that really didn't answer anything.what i'm asking is it really worth changing to a ho head and are all 91-up heads the ho style.

my head gasket is starting to seep oil after 160k miles.i was thinking about changing to a different head while i'm at it.i've heard different stories about ho-heads and even newer heads.would it be worth my while to do this and i really don't want to change my intake just and deal with the tb issues.i'd like to hear from personal experiences.thanks

i've never seen a 4.0 with a one piece rms.they probably wouldn't have leaked so much if they would've had a one piece seal.

you don't have to drop the fuel tank on a mj to get the pump out.not on my 88 anyway.