HELP, SHE'S COLD-BLOODED!!!!

[Jer's 99]

So I live in Tucson, Az where some say we never have winters ... WE DON'T! Anyway, it is "our" winter season too and it usually gets down to about high 20's during the night and roughly 50 during the days.

After the truck sits for my 8-10 hours at work or overnight and I start it up it has the "wait to start" light and then will fire right up. But when I push the pedal to accelerate on the main road (50 mph speed limit zone) for the first time of the day the truck usually takes me 1/2 to 3/4 of a mile to get to speed with normal pedal usage. It will go if I make it, but I do not like to force it in an attempt to preserve the internal motor parts... It basically feels like a freaking pig driving down the road and it runs loud as H E double hockey sticks too. Then once it shifts into OD (1/2 to 3/4 miles later), it is totally gutless, it just boggs down!!! HELP!!!!!!

Now, I don't think this is right at all, but definitely could use some advice:

 

[fgtex]

My truck is kind of sluggish until it warms up a little. I don't try to push it until I feel warm air coming out of the vents. I keep the truck at 1500 rpm or less until it warms up.

Is your truck still sluggish after it warms up good? May be the cold weather.

 

[patrickc]

Most diesels run like a bag of crap when they are cold because they are a heat motor. Mine is exactly the same way.

But when they warm up LOOKOUT!

 

[roosterdiesel]

My guess would be EBPV....as long as the engine oil temp is below 150 degrees it's going to do it's thing. You may unplug the EBPV at the pedistal to see if that's it. Also you really shouldn't let rpms get over 2000 until temps are up.

 

[Tail_Gunner]

I second the EBPV. It's closed because the engine is cold.

If I understand this beast correctly, when you depress the "go pedal", the EBP sensor should detect an excessive back pressure situation and signal the PCM to open the EBPV.

If the EBPV isn't opening when you push the "go pedal" down, then I'd suspect the EBP sensor is bad, or even more likely, the tube between the passenger side exhaust manifold and the EBP sensor is plugged or has a hole in it.

Running a "engine running" self test using an AutoEnginuity or comparable analyzer should shed some light on it.

 

[BamaSixGun]

HELP, SHE'S COLD-BLOODED!!!!

hey, aint that the name of a country song?!

 

[paulkeith]

rick james, actually

 

[Jer's 99]

LOL

Thanks all, I'll check into it as soon as I geta chance. Kind of overwhelming though for a dumb-arse like me.... lol Like a monkey trying to...

 

[Wingdog]

That is deffinately what it is. My truck also had symptoms the same and after I had cleaned the soot out of the small pressure tube and the exhaust back-pressure sensor with brake kleen the exhaust back pressure vavle opens and closes how it should. You could try cleaning it first if you don't want to spend cash on it right now.

 

[W4RLR]

Think about this...how would you feel if you were left out in the cold all night, someone came up, kicked you in the butt and told you to immediately get up and start RUNNING down the street as fast as you can!

I wager you would run like ka-ka too! The defense rests.