Normally from a leaky battery or a poor cable connection at the post?

 

Glue a penny by the post and it will attract the corrosion instead of it building on the batt post -OR- dump some reg Coke on it and it will neutralize the corrosion.

 

Good question! Hard to believe it's leaking batteries in all cases, but not sure. I know all Dual Battery Dodges seem to have this problem. I use Dielectric grease on the terminals. Keeping the air away from them seems to solve the problem.

RJ

 

Me too dielectric grease smeared around the post before installing the clamp then cover all exposed metal and you should not see corrosion again, also wheel bearing grease works as well.

 

Just finished fixing the battery cables. The passenger side cables were both very loose, I lifted them off easily with my hands. The negative cable end was trash from the corrosion, I had a new end crimped on it. I was able to salvage the positive end. I used dielectric grease on all the posts, we'll see how it goes. What do you think the odds are that the super loose connections were causing intermitent drops in LP PSI by half? I noticed the pressure drop right around the time I realized the cables were loose... It's a Campaign pump with about 13 months of use on it.

 

How long ago did you notice your LP pressure being lower? And is it all the time, or once in awhile (the low pressure)?

 

you may try some of the greeen/red O rings sold in the battery section at wally world. Also try some battery spray. Corrosion is like death & taxes, sooner or later, it will appear
Your LP is failing because Carter mostly makes junk.

 

I looked at the green and red felt terminal protectors... I didn't use them, we'll see how long I go without corrosion without them there.

I noticed the pressure dropping to about 7 psi at 70mph a couple of times (I normally run about 12psi under those conditions). I didn't think about it being battery cables, or I would have paid attention to it in relation to the road surface...with the thinking that a jolt would nudge the battery cable enough to cause a voltage drop.

I went ahead and bought a new Airtex pump, and plan to put some miles on the truck tomorrow so i'll see if I'm installing the Airtex tomorrow night or keeping it as a spare.

 

Loose connections will accelerate the corrosion. I use a battery brush to clean the terminals and posts. Then a paste of baking soda and water will clean any more corrosion. A coat of battery terminal protector on the posts before installation, and all over the terminals after installation, will keep corrosion at bay.

 

I recently installed a FP gauge and a couple days later my pump pressure was fluctuating cruising down the road. I called Glacier and he sent me out another Walbro b/c he thought the pump may be going out. I was checking power connections and noticed the power cable could be lifted off with little effort. If the pump doesn't come in today I am going to put everything back together (rpl battery connections and checked bypass) and take it for a drive to see if this corrected the problem.

FYI every older Dodge I have had or worked on has had poor connections on the battery and the terminal connectors are in bad shape.

 

Ditto here also, my procedure is :

clean the posts and clamps

spray the bottom of the posts with the chemical battery protector, I like the CRC brand myself

install the felt pads

put the clamps back on and spray the post thoroughly with the CRC,

I do this to all my vehicles, welding machine, 4 wheeler, I can honestly say I never have corroision, just do it all over when I change batteries.

 

Yep, clean with a battery brush or some sort of wire brush and cleaner if necessary - then use Dielectric grease - that should keep it in check.

 

I put about 70 miles on the truck yesterday with no strange fuel pressure readings... I know 70 miles isn't much, but that is well over the distance I traveled while observing the fuel pressure drops. I guess I may be able to wait to install the Airtex until I can get the big line kit...knock on wood...

 

Also check your fuel filter before buying a $600 fuel pump .

 

put some optimas or oddesy batteries in there and forget about corrosion. It has something to do with the cells of the batteries. All i know is that my optimas have never corroded unlike the standard batteries that were in there before.