Ok so I have this 98 disco. The oil light starting coming on at idle, I figured easy enough and not a big enough problem to drive all the way up to see PT in fortwayne so I took it to my local guy who works on my big trucks for me and asked him to clean the oil pan screen and tube. He then says it has bad oil pressure I need a new oil pump, get one, he puts it in. still no luck. he says I should have the heads done because a compression test shows bad stuff, ok so I let him do it and had him throw a new cam in, he said he also had the valves fixed. I get the car back and there is no power, so a new fuel pump. things seemed ok until I drove about 50 miles and guess what, that's right- oil light at idle and the loss of two quarts of oil. So he says oil sender unit- replaced it. the oil light still came on at idle but just every now and then, I would get out and check the oil, all looked well. so this weekend I drove about 140 miles on the highway, the light flickered only at idle again, I was pissy about it but it could be a bad oil guage right? wrong! when the oil light came on when I was going 70 and I pulled over and there was smoke in the engine and no oil on the stick I think its more than the guage. He is willing to keep working on it for free to fix his mistake but I dont even know what could be wrong with it (he is now blaming the valve/head job company) Any advice or insight into this? Thanks
Local hack oil pressure nightmare
- Thread starter Alexa
- Start date
Let someone else fix your truck or fix it yourself might not have one much longer if the same guy keeps working on it. It seems pretty obvious he does not know what he is doing.
Sounds like you should have taken it to PT the first time and saved a lot of headache. Good luck...
The guy had my truck in pieces so I felt kind of stuck. So does any one have any clue what the problem could be? Unfortunately some of us are not mechanically inclined so the fantastic advice of fix it yourself is not always practical and you dont really think that when you ask someone to clean an oil screen and tube that it would end up being a complete ordeal. I also didnt want to drive it up to PT's with the oil light on...
I also didnt want to drive it up to PT's with the oil light on.
good plan! Do you have access to a trailer or towing reimbursement on you insurance? Get it outta there.
You're in deep and there won't be a quick fix from this point.
So, what things will trigger a oil pressure light? 1) a faulty sensor 2) low oil pressure. So he pulls the pan to clean the screen and pan. Was it actually munged up?
Not sure I follow the reasoning on the heads contributing to this, and the cam timing could be wrong creating a loss of power. What did the cam journals- the round parts that ride on bearings-look like? Do you have the old parts?
Where did all of the oil go?
Did he replace just the gears or the entire front cover?
Going back to low oil pressure: If the engine can't draw oil into the pump, it can't make pressure. If there is an air leak on the draw tube, it could make some pressure, but not adequate and aireated. Any bearing- cam , crankshaft or connecting rod (can't recall, is that 20 bearings?) that has worn away will create a gap too large for even a healthy oil pump to generate enough volume or pressure especially hot, at idle.
My concern now would be, is there damage to the replacement cam or the crankshaft bearing journals as a result of inadequate pressure.
Again, where did all of the oil go?
I had a D2 in here last week with a faulty oil pressure sender. Some other shop had tried to jack the engine speed up to compensate for the light by adjusting the throttle cable! Screwed up the TPS setting which set a Service Engine Light, faults in the trans, and caused lousy shift quality. I was able to sort it out in the driveway.
How's this guy take care of your big trucks? Obviously well enough to be considered for the engine work on the Disco. Now what?
good plan! Do you have access to a trailer or towing reimbursement on you insurance? Get it outta there.
You're in deep and there won't be a quick fix from this point.
So, what things will trigger a oil pressure light? 1) a faulty sensor 2) low oil pressure. So he pulls the pan to clean the screen and pan. Was it actually munged up?
Not sure I follow the reasoning on the heads contributing to this, and the cam timing could be wrong creating a loss of power. What did the cam journals- the round parts that ride on bearings-look like? Do you have the old parts?
Where did all of the oil go?
Did he replace just the gears or the entire front cover?
Going back to low oil pressure: If the engine can't draw oil into the pump, it can't make pressure. If there is an air leak on the draw tube, it could make some pressure, but not adequate and aireated. Any bearing- cam , crankshaft or connecting rod (can't recall, is that 20 bearings?) that has worn away will create a gap too large for even a healthy oil pump to generate enough volume or pressure especially hot, at idle.
My concern now would be, is there damage to the replacement cam or the crankshaft bearing journals as a result of inadequate pressure.
Again, where did all of the oil go?
I had a D2 in here last week with a faulty oil pressure sender. Some other shop had tried to jack the engine speed up to compensate for the light by adjusting the throttle cable! Screwed up the TPS setting which set a Service Engine Light, faults in the trans, and caused lousy shift quality. I was able to sort it out in the driveway.
How's this guy take care of your big trucks? Obviously well enough to be considered for the engine work on the Disco. Now what?
ptschram
Well-known member