Engine Miss
#1
Engine Miss
I have a 96 PSD that I bought last fall. Motor ended up being replaced because of water in oil. I had a shop put in a used 96 PSD with 165,000 miles on it. Has been running fine. I put a fuel pump on it couple three weeks ago due to it leaking out the weep hole. Ran fine for a couple weeks and now I have what I believe to be a miss on one cylinder. It is consistent from idle on up in the rpm range. How can I go about isolating which cylinder? I was a mechanic and still do some on the side but I have never been around a PSD at all. Can I pull valve covers and isolate a cylinder that way? Also been reading alot in the search function and was wondering if I pull a valve cover if there is a way to check the valve covers connectors? I would like to see if they are good or need replaced as they are too pricey to just put on for the heck of it. I am trying to learn as much as i can through the search function but it gets a little overwhelming reading about all the different suggestions. Thank you for any and all help it will be greatly appreciated.
Regards, Jeff
Regards, Jeff
#2
on each vavle cover there is two plugs. unplug 1 at a time until your engine sound does not change. that will isolate two injectors. however, that better way to do it is to plug it in to a good scanner and run the cylinder contribution test. that will isolate 1 injector from the rest rather than two. Maybe be more specfic on your problem, someone might have a solution rather than injector. good luck.
#3
Thanks I will try that. If I find the plug in that has the miss I could swap one injector on that side with one from the other plug and see if it moves if it don't I know it's the other one. Is there anything special about moving an injector from one cylinder to another? Will it ruin o-rings or something else? I have never been in one so don't know whats in there.
Regards, Jeff
Regards, Jeff
#4
Smokey try and find someone with a good scanner. The snap-on one works great. Most people don't own one cuz they are expensive. Some shops will do the engine test for you for little to no $. I bought the guy in town lunch and he scanned my truck. I told him what I was doing and he was willing to help. It shouldn't matter swapping injectors from hole to hole. But make sure you don't let a bunch of oil run down the hole where the injector goes in. You will hydrolock your engine! Thats bad. When I replace the bad injector on my truck I took a loong screw driver with a towel on it and placed it in the hole till I got the new injector in.
#5
#6
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