|
|
|
#1
|
|||
|
|||
300sdl low idle and changing oil pressure
Hello,
Let me know if if I'm in the wrong place I've been having this issue with my 1987 300sdl and the oil pressure and idle. The issue started after I removed the intake manifold to replace the gasket that crosses over the valve cover. After replacing it the dropped from around 750 at idle to 500 at idle with the oil pressure at idle changing rapidly between above 2 to below, when it drops lower towards 1 the idle kicks up to 1000 to offset the oil pressure. I opened the hood and saw a small amount of oil weeping from the new gasket so I attempted to tighten down the bolts believing it wasn't snug and stripped out the hole. does anybody have any ideas about what could be causing the issue with the idle and oil pressure? Summarized:
|
#2
|
||||
|
||||
You should start in the Diesel Discussion subsection of this forum
Assuming it wasn’t doing this before you removed the manifold, you probably knocked some wires or connectors loose. Check the wires and connectors for: - crank position sensor on the bell housing flange below/behind the oil filter housing - oil pressure sensor on the oil filter housing - ELR actuator on the tail end of the injection pump You’ll have to sort the broken bolt. I smear RTV on both sides of the gasket between the crossover pipe and intake manifold. It doesn’t go on very tight as you discovered. There shouldn’t be that much oil there in the first place. Check whether it’s blowby into the turbo or a tired turbo seal, then fix it. The Diesel Discussion folks will have lots of advice for you. Sixto 98 E320s sedan and wagon 02 C320 wagon |
#3
|
|||
|
|||
You've likely loosened the ELR plug. The ELR is the round thing on the back of the IP, it enables electronic idle control.
Oil pressure fluctuation is likely a bad sender. |
Bookmarks |
|
|