Rpms dropping off? No power
Amateur
Joined: May 2013
Posts: 45
Likes: 0
When accelerating, after the truck shifts, it will go to whatever rpm and it feels good, then after a few seconds, it drops about 200-300 rpm and then it has no power. I can move the gas pedal and it does not seem to do much, barely even changes the sound of motor. Truck has a hard time just pulling its own weight up the hills. It is almost like the truck is detuning itself or something.
Thread Starter
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Registered User
Joined: Oct 2012
Posts: 23
Likes: 0
Can't be gas since it has been doing this for a long time, many, many tanks. I won't rule out fuel pump cuz I have no idea what the problem is. I have had fuel pumps and filter clog before and they always rand for a while and died. This runs like a top, just no power.
Legend
Joined: Mar 2011
Posts: 8,914
Likes: 4
From: Fredericksburg, Virginia
Are you sure that's not the PCV? There is a crank case breather on the passenger side that goes to the air filter.
Should have a little elbow looking like thing on the valve cover towards the firewall.
Here's what mine looks like:
Driver:
Passenger:
(just cleaned that damn filter too)
Should have a little elbow looking like thing on the valve cover towards the firewall.
Here's what mine looks like:
Driver:
Passenger:
(just cleaned that damn filter too)
Veteran
Joined: Jan 2010
Posts: 295
Likes: 0
From: Omaha, NE
i have 2 ports on the driver side of the manifold of my 01. 1 goes to the pcv, the other to the brake booster. Passenger side has a port that goes to vacuum lines for the 4x4, vents, cruise and whatever else is spliced into it.
My crankcase breather on the pass side valve cover goes straight up to the airbox. Not sure if that helps but that's how mine was setup. From the pic u have, that open port would be the one that goes to the pcv valve on the driver side valve cover. At least that's how its set up on my truck. And yeah...that'd be a pretty major vacuum leak if its wide open like that.
My crankcase breather on the pass side valve cover goes straight up to the airbox. Not sure if that helps but that's how mine was setup. From the pic u have, that open port would be the one that goes to the pcv valve on the driver side valve cover. At least that's how its set up on my truck. And yeah...that'd be a pretty major vacuum leak if its wide open like that.
Thread Starter
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Registered User
Joined: Oct 2012
Posts: 23
Likes: 0
I just plugged it, I will take it for a drive tomorrow over my commute hill and I can tell if it made a difference. Just drove around the block and it seemed a little better. But need to get in to drive over that hill and see if she pulls better.
