Stroker Power Loss
Posted: July 15th, 2020, 6:12 pm
Hey everyone,
I have a sudden loss of power, feels like I lost 75hp. No check engine (apart from the evap code that is always there). Power loss is more noticeable at higher rpms. No smoke, no noises, runs smoothly, starts no problem, oil is good (No flakes, foam, etc.), no signs of blow by etc. In Neutral it doesn't easily reach the limiter, it wouldn't even go past 4200 at one point ( sounded like it was bouncing off the limiter at 4200). After the full tank (noted Below) It will get to the limiter kinda weakly.
I figured I might have gotten some water in the gas a few weekends ago doing a deep river crossing. The tank finally got down to below a quarter full and I figured it was probably sucking some water. So I added some water remover and put in a full tank, its a bit better but not nearly where it should be power wise (so basically the same).
What are come common things to check out? Engine is a 4.6 stroker probably about 10k miles on it(All same accessory's,manifold,TB,intake etc. as 4.0) 2004 Jeep tj.
To me it might still be a fuel issue? Maybe a clogged cat? Any pointers on what to check is appreciated. I am getting paranoid and thinking maybe the cam lobes are worn/wearing? which wouldn't make sense due to the sudden onset.
Any pointers are greatly appreciated.
Cheers
I have a sudden loss of power, feels like I lost 75hp. No check engine (apart from the evap code that is always there). Power loss is more noticeable at higher rpms. No smoke, no noises, runs smoothly, starts no problem, oil is good (No flakes, foam, etc.), no signs of blow by etc. In Neutral it doesn't easily reach the limiter, it wouldn't even go past 4200 at one point ( sounded like it was bouncing off the limiter at 4200). After the full tank (noted Below) It will get to the limiter kinda weakly.
I figured I might have gotten some water in the gas a few weekends ago doing a deep river crossing. The tank finally got down to below a quarter full and I figured it was probably sucking some water. So I added some water remover and put in a full tank, its a bit better but not nearly where it should be power wise (so basically the same).
What are come common things to check out? Engine is a 4.6 stroker probably about 10k miles on it(All same accessory's,manifold,TB,intake etc. as 4.0) 2004 Jeep tj.
To me it might still be a fuel issue? Maybe a clogged cat? Any pointers on what to check is appreciated. I am getting paranoid and thinking maybe the cam lobes are worn/wearing? which wouldn't make sense due to the sudden onset.
Any pointers are greatly appreciated.
Cheers