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Hey everyone. First time visitor here to the Dodge section of HpTuners forum. And I'm looking for some help. I've recently purchased an 06 Grand Cherokee with the 5.7L Hemi. And I'm pretty sick of...

https://youtu.be/SPDLXhRVzsE

Hey everyone! Sorry it's been so long getting back to you guys.
I finally got the car all torn apart and reassembled.
Did a full DoD delete with a tune, and the car runs flawlessly.
The issue...

I spoke with my machinist about it. He said it was very common to have locked lifters due to weird oil pressure.
That seems to be the case here.
Though I should mention those particular lifters are...

I'm aware.



1. Yes, the preload was normal on all the rocker arms ASIDE from the #4 (offending) cylinder. On TDC for that cylinder the valves stayed open. I checked 4 different times to ensure...

Well I appreciate the advice, but this is for a friend of mine. Just trying to get it back on the road, and while LS3 stock cams may be cheap. It's not cheaper than a free LQ9. :p
Thanks.

Thanks for the reply! Sorry I didn't see it while i was composing that last message. I'm sure this car has had lot of owners. But Aside from the two new lifters they put in it, I'm surprised the...

Here's what I've found after tearing it down.

94570
94571
94572

At first it seems like a blown headgasket. But, after checking everything over It all seems fine. Head mating surface is...

Yeah the leakdown test was fine without the rocker arms on. Already working on tearing it down. But I've found something suspicious..
The #4 (worst offending cylinder) is extremely clean on the...

Gave it a shot, valve seals are good. Looks like the lifters are keeping the valves open all the time.
I shouldve known, as the car fires through the exhaust on occasion.

Well it looks like you were right. The lifters are not collapsing themselves.
But, I did do a compression test on the offending cylinders (#3 & #4) both came up low (130-145psi).
And on leak down...

Hey everyone, just recently picked up a 2008 G8 GT. The car has 152k miles. Completely stock, never had anything done to it. But I'm chasing a misfire on two adjacent cylinders. #3 & #4. I've...

Disabled all the Knock sensor related codes and the truck is back to normal. Really appreciate the help here, something i've never encountered. I'll work on getting it fixed.

If my memory serves me right, Disabling said codes still allow Knock sensor function. It just doesn't report an error. Am I thinking correctly here?
Either way I'm going to go check the codes now....

Hey everyone, long time lurker here on the forums. First time poster. But I've had enough, and can't figure this out on my own. I've got a 2001 Silverado with a 5.3. It's completely stock aside from...

Hey Ben, Sorry I've been so busy lately. Yes, it hangs at idle. Say you want to rev it 800->2000 It usually revs up pretty fast, then hangs at 1500-1300 and comes down really slow.

Now that you...

Alright, After lots of testing and tuning. I got the truck to run on different than stock injector data. So far, I've tried info i found online, stuff from other tune files, and stock 8.1 data. So...

Well after lots and lots of look and fighting with hptuners. I finally managed to figure out the issue. I was unaware HPtuners had an option for "Basic" tuning mode. Which is what It's been running...

I'll need to take a look at the tune again, It's bits and pieces from various tunes. Like the one tune I found that actually made it start. and some stuff from 02 camaros/corvettes. I think I'm going...

I didn't want to hijack your thread, so I made another one that's got some more information about what mine is doing. Here
...

Hey everyone, This is my first thread on this forum. Hooray! Though I was hoping I wouldn't have to make one.

To make a long story short-er, I bought a 2002 RCSB silverado with a 4.3 in it. Super...

I'm using the same marine 42 lb injectors in my 02 Silverado. So far I've barely been able to get it to run. Just adding higher flowrate to the injector control table isn't working, and aside from...