I found that there wasn't any problrm with the existing Steering, it was a leaking "oil union" near the steering column.
It would appear that the union had not been tightened on the assembly line.
The union appears to have loosened over time (93000klms) and was just finger tight.
I was going to have the Steering Rack replaced by a mechanic.
The question arises as to whether the mechanic would have noticed the above, and just retightened the union, or gone ahead and replaced the rack ?
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Assume this is a 4.3-first, make sure the filter is on tight (it happens)-not knowing how bad the leak is, I would check to see if the oil pressure sender unit is there (that is usually close to where they locate them, and they do leak). If it seems to be coming from where the filter is spun onto the block, remove the filter and make sure the old gasket from the last filter did not get stuck onto the block, then the new filter got installed over top of it (it happens too). If these do not pan out, the oil filter adapter (housing that holds the oil filter) may need to be removed and the gasket replaced.
Rocket Pinion? thats a new one, no such thing ; ) .....I think you mean Rack and Pinion. (Steering Rack Assy) you just need to buy a remanufactured unit at any parts store, after replacement, you will need to have the front eng aligned. I would recommend a repair shop do this for you.
Steering Rack? Have to change /flush oil every few years. Should last ten or more years but some don't. Flush system and install an inline filter on return line, before you install rebuilt rack. Instructions to same, come in box.
It common for the oil to leak there when your oil pressure sending unit has gone bad. It's a simple fix, locate the oil pressure sending unit (between the starter and oil filter are) and replace. Auto Zone will have the part you need and step by step instructions to get the job done, Napa, and Part Source will have the part also. Do not use Teflon tape when installing the new oil pressure sending unit, the end is tapered and it needs a good ground to the engine block to work properly.
Good luck and this should take you around 20 min to replace once your start when the engine has cooled off to work on.
You got it, Common for the plastic top where the wire leads connect to crack. This will cause the oil to leak and at worst, what you have indicated happening on your Blazer. Note; when installing the new sensor, do not use any Teflon tape on the threads. The sensor is tapered and works best to have a good ground, so just tighten it enough to keep the oil from leaking. Good luck friend and make sure you pick up the right oil sending unit sensor. One is for just a light to activate and the other is the one you need to be able to give you a oil pressure reading. Best to go at a Dealer for this part with your VIN number.
depends on whats causeing the leak, hose? replace hose, bent or worn shaft ? yes replace unit... you will need to determine the overall condition of the unit and surmise whether or not which is more cost effective total replacement or repair, sometimes the labor involved to repair a unit can be more than the cost of remanufactured or new unit installed... have a qualified suspension and steering technician help you evaluate the circumstance...
It's very possible that the gaskets weren't installed correctly. Unlinke other cars I've owned, my 99 A4's valve cover gaskets are actually somewhat longer than they need to be (about an inch or so), and you have to be very careful when installing them that they don't get pinched outside the "channel" that they're supposed to sit in. I'd be willing to bet that the installer bumped the gasket when replacing the valve cover and knocked it out just enough that it's allowing oil to leak past the gasket. I'd pull the valve covers again and verify that they're seated correctly. I would bet they aren't - there's really nowhere else on the 2.8 for the oil to leak where it could hit the manifold.