egr valve question
#11
BF Veteran
Join Date: May 2011
Location: SW Central OH
Posts: 2,253


RPM v Pressure @ temperature is always what counts. MPH means diddly. Load means something.
Just an FYI cause -again- I am NOT debating this with any 30 year ASE, friend, neighbor, dad, nascar fan or rocket scientist...
Another sign of bearing wear is when you put additional load on with less than bypass pressure {57}, the pressure drops.
Say you are in D and about 50 lbs and you accelerate without it shifting, the pressure drops to 45 or so. That's worn bearings. Doesnt ALWAYS happen but does relate.
Just an FYI cause -again- I am NOT debating this with any 30 year ASE, friend, neighbor, dad, nascar fan or rocket scientist...
Another sign of bearing wear is when you put additional load on with less than bypass pressure {57}, the pressure drops.
Say you are in D and about 50 lbs and you accelerate without it shifting, the pressure drops to 45 or so. That's worn bearings. Doesnt ALWAYS happen but does relate.
#12
As far as your code goes, they stay in the system for a while so you can still see what it was throwing up there.
But if i were you i would do what pettyfog said and go with the different oil. I know that has worked for multiple people, i just forgot about it when i wrote the first reply. The reason you lose oil pressure is because the oil heats up and becomes less viscous and flows easier through the worn bearing. so going with a heavier oil would help with that. thats what i have heard happens anyway.
But if i were you i would do what pettyfog said and go with the different oil. I know that has worked for multiple people, i just forgot about it when i wrote the first reply. The reason you lose oil pressure is because the oil heats up and becomes less viscous and flows easier through the worn bearing. so going with a heavier oil would help with that. thats what i have heard happens anyway.
#15
Beginning Member
Thread Starter
Join Date: Jan 2012
Posts: 34

Well great news guys, the noise that made it sound like a tractor, the idler arm went out and had to get a new one, so did that and the belt. Fixed that problem. The main knocking sound I hd my uncle look at. Aparently there was air in the fuel line or the other line, how he told me to fix it was let the truck cool off completely, tke the radiator cap off let it heat to he point of knocking give give it some gas. I did quite a bit of. Radiator fluid came out. But so far it sounds fine no knocking. I'm thinking of changing the antifreeze out and draining the old, I don't know if it will do anything but oh well. Thank you guys for your inputs they were helpful. I'm def posting more problems/issues in the near future. Exhaust, changing wires, spark plugs,
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IndianaBlazerGirl
2nd Generation S-series (1995-2005) Tech
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09-06-2011 06:22 PM






