04 Dodge Hemi dies after hard pull
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Registered User
Joined: Jan 2013
Posts: 8
Likes: 0
From: Somerset, KY.
Izero, to answer your questions,
I'm hauling about 4000 lbs
It dies only on a hard pull, but twice, backing up a steep incline without the trailer, it died.
There is no Modifications.
I don't know the rear end gear. If I had to guess, maybe a 3.55
It's a Ram 1500 AWD 4x4 4door. I bought it new. I have always pulled trailers.
No check engine light.
I have always used the lowest grade octane. (I don't let the truck know there is anything higher).
I used the injector cleaner 3 tanks ago.
I get 11 mpg in town and 15 interstate, and 7.8 pulling the trailer or boat.
Spark plugs are OEM.
I'm hauling about 4000 lbs
It dies only on a hard pull, but twice, backing up a steep incline without the trailer, it died.
There is no Modifications.
I don't know the rear end gear. If I had to guess, maybe a 3.55
It's a Ram 1500 AWD 4x4 4door. I bought it new. I have always pulled trailers.
No check engine light.
I have always used the lowest grade octane. (I don't let the truck know there is anything higher).
I used the injector cleaner 3 tanks ago.
I get 11 mpg in town and 15 interstate, and 7.8 pulling the trailer or boat.
Spark plugs are OEM.
Champion
Joined: Aug 2006
Posts: 4,489
Likes: 4
From: New Jersey
Well for the Hemi 89 octane is the recommended fuel, so you might be seeing a problem from the lower octane fuel.
The injector cleaner might have dislodged some build-up in the system and clogged an injector, so you might want to run some seafoam through the fuel system and see if that clears it up.
If the rear end is 3.55 and you are hauling 4000# you might be putting a little too much stress on her depending on the incline grade, to help with that I would suggest that you might want to consider putting a 3.92 or 4.10 gear in if you do a lot of hauling.
Only other thing I can think of is the grade angle is messing with your truck somehow... which is very unlikely.
My real thought here is that the fuel pump might be the issue... or at least a partial cause.
Check the actual fuel pump ground, which usually mounts to the chassis near the very rear of the truck, but sometimes ends up spliced into the tail light harness and/or trailer harness.
And to eliminate something ridiculous but possible:
How steep of a grade are we talking about? More than 50% (26.7*)? If you travel over a certain angle the fuel in the tank might be sloshing away from the fuel pump (more likely when you are below 1/2 tank) which starves the truck for fuel.
It might sound ridiculous, but I've seen it happen on rock-crawler wranglers that didn't switch to a fuel cell and in-line fuel pumps...
The injector cleaner might have dislodged some build-up in the system and clogged an injector, so you might want to run some seafoam through the fuel system and see if that clears it up.
If the rear end is 3.55 and you are hauling 4000# you might be putting a little too much stress on her depending on the incline grade, to help with that I would suggest that you might want to consider putting a 3.92 or 4.10 gear in if you do a lot of hauling.
Only other thing I can think of is the grade angle is messing with your truck somehow... which is very unlikely.
My real thought here is that the fuel pump might be the issue... or at least a partial cause.
Check the actual fuel pump ground, which usually mounts to the chassis near the very rear of the truck, but sometimes ends up spliced into the tail light harness and/or trailer harness.
And to eliminate something ridiculous but possible:
How steep of a grade are we talking about? More than 50% (26.7*)? If you travel over a certain angle the fuel in the tank might be sloshing away from the fuel pump (more likely when you are below 1/2 tank) which starves the truck for fuel.
It might sound ridiculous, but I've seen it happen on rock-crawler wranglers that didn't switch to a fuel cell and in-line fuel pumps...
hahahaha glad you "solved" the problem lol