2009 5.7 oil pump failure?

[mrack]

My truck threw a CEL with P1524 - oil pressure out of range - camshaft advance/retard disabled. 30 minutes later heading home on the freeway, oil pressure light came on, pressure gauge was scary low. Shut it off, checked oil, little low. Started it back up and pressure was decent but never got over 27 psi, gradually dropping as I went, 5 miles later started dropping faster and top end starting ticking right as I pulled over and shut it off. Got a ride and came back with a trailer, loading and unloading it had decent pressure.

Now (next day) is has the original P1524, but also a p1521 - incorrect engine oil type. The truck currently has pennzoil 5w20 and a cheap stp synthetic filter, under 4k miles but close to 2 years since it’s been changed. Oil is low, last I checked it before this was a week ago and it was about 1/4 up the safe area. Here’s where it is currently:


I see a lot of guys changing filters and oil to get rid of p1524 but I don’t see that being a long term solution here. My current plan of action is drop the pan, see what kind of contamination I find in there (I suspect this truck had lifter failure before I owned it so wouldn’t be surprised I find some metal), replace pickup tube, hellcat oil pump, big srt filter. Thoughts, input, advice? From what I’m finding actual complete oil pump failure is extremely rare on hemis, but seems like a good idea to cover all my bases here, I want this truck to last a long time. I am concerned where that much oil went in just a weeks time though. It’s a 2009 1500 5.7 with 164k miles, I’ve owned it for 2 years since 160k.

 

[Daw14]

You should not be surprised that when you drop the pan that there is a buildup of sludge . Caused by waiting to long a time / mileage intervals for oil changes.
If it was not for the ticking I would swap the oil pressure sensor, as these fail very often.

 

[Wild one]

My truck threw a CEL with P1524 - oil pressure out of range - camshaft advance/retard disabled. 30 minutes later heading home on the freeway, oil pressure light came on, pressure gauge was scary low. Shut it off, checked oil, little low. Started it back up and pressure was decent but never got over 27 psi, gradually dropping as I went, 5 miles later started dropping faster and top end starting ticking right as I pulled over and shut it off. Got a ride and came back with a trailer, loading and unloading it had decent pressure.

Now (next day) is has the original P1524, but also a p1521 - incorrect engine oil type. The truck currently has pennzoil 5w20 and a cheap stp synthetic filter, under 4k miles but close to 2 years since it’s been changed. Oil is low, last I checked it before this was a week ago and it was about 1/4 up the safe area. Here’s where it is currently:
View attachment 553839

I see a lot of guys changing filters and oil to get rid of p1524 but I don’t see that being a long term solution here. My current plan of action is drop the pan, see what kind of contamination I find in there (I suspect this truck had lifter failure before I owned it so wouldn’t be surprised I find some metal), replace pickup tube, hellcat oil pump, big srt filter. Thoughts, input, advice? From what I’m finding actual complete oil pump failure is extremely rare on hemis, but seems like a good idea to cover all my bases here, I want this truck to last a long time. I am concerned where that much oil went in just a weeks time though. It’s a 2009 1500 5.7 with 164k miles, I’ve owned it for 2 years since 160k.

The Hemi can be a bit deceptive when it comes to checking the oil,if you check it hot shortly after shutting it off,quite often you'll have a differant level then after it's sat overnight or for a couple hours.I always pull the dipstick wipe it off,throw it on the fender and wait a couple hours then re-insert it and check the oil,after it's had a couple hours for everything to drain back into the pan and out of the dipstick tube itself.

 

[jws123]

Check your oil pressure manually with a guage and your engine could be slugged up if owner before you did 10k oil changes or something stupid.

 

[mrack]

The Hemi can be a bit deceptive when it comes to checking the oil,if you check it hot shortly after shutting it off,quite often you'll have a differant level then after it's sat overnight or for a couple hours.I always pull the dipstick wipe it off,throw it on the fender and wait a couple hours then re-insert it and check the oil,after it's had a couple hours for everything to drain back into the pan and out of the dipstick tube itself.

That picture in the post is from today after sitting for about 14 hours. I was expecting it to drain back into the pan and read a little higher today but it’s about the same as last night.

 

[Daw14]

I stopped relying on the factory gauge when the sensor failed at less than six months and a few thousand miles. When I replaced the sensor with OEM I also added a mechanical gauge , to ensure that the pressure displayed was correct.

 

[mrack]

You should not be surprised that when you drop the pan that there is a buildup of sludge . Caused by waiting to long a time / mileage intervals for oil changes.
If it was not for the ticking I would swap the oil pressure sensor, as these fail very often.

Yeah, I really should have changed the oil again a few months ago but didn’t seem like a priority. There’s no doubt in my mind it’s an actual issue and not a bad sensor, I could definitely hear the top end start ticking progressively louder as oil pressure went down into the low teens. When started to load on the trailer 30-40 mins later it ticked very briefly then quieted as oil reached the top end again. Sludge/buildup blocking the pickup tube is my #1 suspect given how pressure improves after sitting a while.

Here’s a Facebook group post from a couple years ago that’s kind of what I’m imagining, although probably more sludge then metal in my case. He also had a p1524

Video

www.facebook.com

 

[mrack]

What’s the part number for the big srt filter? Lots of posts about it but can’t find the number.

Hellcat oil pumps, any year 6.2 works? Do I need to swap the pressure relief spring from my factory pump?

 

[Wild one]

What’s the part number for the big srt filter? Lots of posts about it but can’t find the number.

Hellcat oil pumps, any year 6.2 works? Do I need to swap the pressure relief spring from my factory pump?

Any 6.2 pump works,they're all the same,if you don't want oil pressure codes,you'd be wise to swap your bypass spring in place.

 

[Daw14]

SRT 05038041 AA

MO - 041

 

[mrack]

SRT 05038041 AA

MO - 041

Thank you!!

Guessing amazon is a bad source, but this says it’s from the mopar store? I like the price https://www.amazon.com/Genuine-Mopa...9&psc=1&mcid=a5fec94f2b943429b1ee3036677333b8

 

[mrack]

Moving the truck into the shop today (less then 100 yard and maybe 60 seconds running), high 30s for oil pressure, very normal. Cut open filter, drained oil, nothing I thought was concerning, no metal.

Dropped the pan, found less sludge and more metallic then expected… definitely some buildup on the pickup screen, seems possible enough of the other junk in the pan got pulled up onto the screen to cause the two low oil pressure instances, and then settled back down after sitting, at least to my uneducated mind? Any input from the experts here?






Will pull the timing cover tomorrow if I have time, but not expecting to find much. Tempted to pull the heads and throw a new set of lifters in while I have it this far…

 

[mrack]

For what it’s worth, my old man was driving the truck in the low pressure instances, and had been driving it harder then I do lol. Combined with the 545rfe shifting only when it feels like it, the rpms stayed a lot higher then usual. Perhaps that stirred up the junk in the pan a bit.

 

[mrack]

Timing cover is off, pickup tube bolt sure is easy with the pan off, didn’t get to use my ground down 1/2” wrench lol. With the pickup tube off, I can see a lot more junk on there then I realized last night. It’s all plastic (or maybe aluminum, magnet didn’t stick) shavings, and looks like a lot more in the pan (hard to tell when it’s all soaked in oil). Looks like something plastic got shredded pretty good, question is what? First guess was timing guide/tensioner, they look intact that I can see but will take a closer look later. Planning on replacing both and the chain with Melling parts anyways. Can’t think of anything else plastic in the motor that could’ve been shredded into fine shavings like this, or aluminum either for that matter.


Oil pump looks normal to my inexperienced eye


Time to compile a parts order and then hopefully reassemble soon after. Decided against pulling the heads.

 

[Wild one]

Timing cover is off, pickup tube bolt sure is easy with the pan off, didn’t get to use my ground down 1/2” wrench lol. With the pickup tube off, I can see a lot more junk on there then I realized last night. It’s all plastic (or maybe aluminum, magnet didn’t stick) shavings, and looks like a lot more in the pan (hard to tell when it’s all soaked in oil). Looks like something plastic got shredded pretty good, question is what? First guess was timing guide/tensioner, they look intact that I can see but will take a closer look later. Planning on replacing both and the chain with Melling parts anyways. Can’t think of anything else plastic in the motor that could’ve been shredded into fine shavings like this, or aluminum either for that matter.
View attachment 553949

Oil pump looks normal to my inexperienced eye
View attachment 553950

Time to compile a parts order and then hopefully reassemble soon after. Decided against pulling the heads.

I think you're making a mistake not pulling the heads so you can remove the lifters and check them over.If you have the pan off,you might want to remove a main bearing cap and rod bearing cap and look them over close for scratches.You're that far into it,it's worth digging a bit deeper.
Pull the inner gear out of the pump and look it over for scratches/wear etc.

 

[mrack]

I think you're making a mistake not pulling the heads so you can remove the lifters and check them over.If you have the pan off,you might want to remove a main bearing cap and rod bearing cap and look them over close for scratches.You're that far into it,it's worth digging a bit deeper.
Pull the inner gear out of the pump and look it over for scratches/wear etc.

Perhaps. My reasoning is it’s really no easier to pull the heads with what I’ve removed, and this truck has no lifter tick, it’s been tuned to idle at 700rpm, and with a hellcat oil pump I’d like to think the odds are in my favor, at least enough that I don’t need to do lifters as preventative maintenance. Down time is a factor also, I really want this truck back on the road within the next week or two if possible.

I’ll look into removing bearing caps, I’ve yet to mess with the bottom end of a motor at all and wouldn’t mind poking around down there a bit.

I appreciate your input, I’m certainly no professional but I do enjoy learning.

 

[Ken226]

Could someone have put some of kind of stop leak stuff in and clogged everything up.

 

[Sherman Bird]

Moving the truck into the shop today (less then 100 yard and maybe 60 seconds running), high 30s for oil pressure, very normal. Cut open filter, drained oil, nothing I thought was concerning, no metal.

Dropped the pan, found less sludge and more metallic then expected… definitely some buildup on the pickup screen, seems possible enough of the other junk in the pan got pulled up onto the screen to cause the two low oil pressure instances, and then settled back down after sitting, at least to my uneducated mind? Any input from the experts here?

View attachment 553918
View attachment 553919
View attachment 553917
View attachment 553916

Will pull the timing cover tomorrow if I have time, but not expecting to find much. Tempted to pull the heads and throw a new set of lifters in while I have it this far…

Why waste anymore time? That engine is toast!

 

[Hagar1]

Pay particular attention to the bolts on the front main. I've seen them covered so badly by sludge that the bolts wouldn't fall out after backing them out of the threads. If you look at the front of the engine with the front cover off you will see the outline of the oil gallery that the main bolt goes through. This has been an area of sludge build up.

 

[jws123]

As a guy who has ran a hemi 2 camshafts deep. You sir have some problems with that much in the screen even I would be tearing that thing down best of luck that engine is done if not now very soon it will blow.