turbo wont spool until truck is up to running temp?

zachthebuilder · #1 (**permalink**) 12-29-2012, 10:15 AM

this is my first winter with my 03 7.3 ....... i unplugged my truck this morning and started it just like any other day but when i pulled onto the road i noticed no turbo spool after about 5 min of driving the truck was up to its normal running temp and the turbo was working just fine like nothing was ever wrong? any ideas???

**dhanna6powerstroke** · #2 (**permalink**) 12-29-2012, 10:33 AM

Probably hearing a hissing noise too?

**Justin@DP-Tuner** · #3 (**permalink**) 12-29-2012, 01:07 PM

Probably the EBPV. How cold was it when this happened?

zachthebuilder · #4 (**permalink**) 12-29-2012, 02:53 PM

yea on the hissing.. also forgot to mention that the exhaust is hacked off about 2 ft passed the back of the cab so no muffler etc (not my handy work) and response to the 2nd question about 20 degrees...... what is the letters that u mentioned?

**dhanna6powerstroke** · #5 (**permalink**) 12-29-2012, 02:55 PM

EBPV (Exhaust Back Pressure Valve). It's suppose to help with engine warm up. Most guys disconnect them.

zachthebuilder · #6 (**permalink**) 12-29-2012, 03:20 PM

ok so 2 questions where do i find that to disconnect it and is there anything actually wrong with my truck.... and thank you very much for the help

**dhanna6powerstroke** · #7 (**permalink**) 12-29-2012, 03:24 PM

Quote:

Originally Posted by zachthebuilder

ok so 2 questions where do i find that to disconnect it and is there anything actually wrong with my truck.... and thank you very much for the help

It is a normal characteristic for that engine, however you could have a bad sensor or clogged tube making it more noticeable. There is a plug on the bottom of the turbo that you can disconnect that should make it quit.