Running poorly and running poorly. OBD-II will throw codes sometimes.

Ever test the Coolant temperature sensor?

 

Are the knuckles the same between low pinions and high pinions? They look the same to me, but just want some input from jeepers.

 

Yes

 

Perfect. Thanks.
I'll have spares then. Not that I'll probably ever need them but never know.

 

I've replaced the coolant sensor

 

I have a pretty good bleed on my brake system but I'm looking at replacing my right front caliper because its dragging, and the section of the caliper where the pad notch should slide is all dinged up. Can I just clean this up so it slides better or should I replace the caliper? Also I have ABS, is this going to be a total *****? There are some cheap brake places in the area and I could just get a whole 4 wheel brake job done for pretty cheap all things considered.

Edit: Looks like the damage actually ends up on the knuckle? Cool. :|

 

I've seen it done where people have fixed the knuckle. It takes good welding skills to do it if I remember right

 

By the sound of your description the problem is occuring at engine startup - when the fuel ratio is contolled in open loop. Your engine is running very rich at startup. o2 sensor inputs don't affect the fuel ratio at startup so I'd recommend testing/swapping the map sensor and checking for a leak in the vacuum line.

 

sorry was MIA a few days..its a 87 cherokee and i believe its the basic model..not many bells and whistles with it lol..the way i have the radio wired up now it will only turn on when the vehicle is on(same as before it stopped working) but when i turn off the vehicle nothing saves. no presets, time, settings. its rather annoying so i need to figure out whats going on with the accessory wire.

 

Having a problem with my '79 F150, but it's disc brakes like anything else:

Sometimes when I'm driving (coasting and/or under throttle), it pulls left. Sometimes after braking, the left side sticks hard. It's behaving just like my Camaro did when the soft line deteriorated, and that was fixed with a new rubber hose.

What has me perplexed is that when the left side sticks, and ONLY when the left side sticks, the truck pulls hard right when I brake.

I already bought new rotors, calipers, pads, and lines to put up front, but I'm wondering if this is two issues or if, more likely, there's a connection that I'm not seeing.

 

Re lube the caliper pins? It worked on my 99 xj. Might be similiar issue

 

Yup try this first. Best maintainance when changing pads. Happy I greased mines recently. Brakes better

 

I'm replacing everything cause I just got the truck a couple weeks ago, and all the hardware is worn out. Rotors are thin, pads are nearly gone, and the soft lines look original.

I just can't figure out why:
1) It brakes straight when the left side IS NOT dragging while coasting
AND
2) It brakes hard right when the left side IS dragging while coasting

 

Just speculation, could it be because when the left side is sticking no fluid can move on that side and the right side gets more pressure? Not even sure if that can happen because of the prop valve.

 

Would using heavier oil in rear diff help quiet down the bearings?