Possible plenum failure or something different.

[Emartinez111]

Alright so I'll get right in to it.
I have a 1999 Dodge ram 1500 with a magnum v8 5.9

When I start the truck it has a loud sucking sound. Almost like a vacuum leak but I have zero symptoms of a leak. I did just put in a k&n air filter so Idk if that's what I'm hearing.

Truck idles at about 600 rpms. Idk if that's normal or not.

When I stand on the gas. It feels like there's no power. Like the transmission didn't kick down to a lower gear.

Any ideas? I'll add more as I come across them.



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[RamV10]

Could be the air cleaner. A plenum leak will suck oil as a rule.
But for what its worth a K&N is a very poor choice of air cleaners. I don't have the time but in short on an 02 Dakota 4x4 after running a K&N for about 15,000 miles I had so much fine dirt in the TB & intake tube I had to completely tear everything from the air cleaner back to removing the TB to clean it. Had to clean the intake the best I could.

 

[Emartinez111]

What do you suggest as a better performance air cleaner. I don't particularly like the old fashioned Fram or anything like that.

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[dodge dude94]

Did you use the actual CAI or the drop-in filter? If you used the actual CAI you might have some binding issues with the transmission kickdown cable. Can you get it to rev in park any?

 

[Emartinez111]

Used the drop in air filter. Not the cai.

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[dodge dude94]

Make sure you have a cool seal on your box and make sure the linkage isn't binding any.

 

[Emartinez111]

Linkage on the tb or the kick down on the tranny

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[dodge dude94]

It's located on the throttle body. Make sure you can rev it in neutral first, if not, we have something else going on.

 

[Emartinez111]

It's revs up fine. I'm saying while in driving like in second gear it won't kick down when I stand on it.

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[dodge dude94]

Give this a whirl:

http://bionicdodge.com/Download/Dodge_Ram_Truck_Transmission_Adjustment.pdf

 

[Emartinez111]

Awesome. I'll check it out.

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