Thank you after lots troubleshooting with advice i found 2 bad grounds and a short on the 02 harness no more rich smell or going through way too much fuel.
My 99 7.4 is alwayse out 24 to 26 degrees of timing but my cam correlation Is at -.1°
Are you adjusting for the cam crank correlation Cause a 99 gen 6 the computer does the rest
I have a 99 gmc k3500 7.4 I replaced my injectors With the bosch 4 holes great product i also deleted the cats and got the cam correlationt to .1° but my truck is running super rich.. how do i fix this
Grounds always check your grounds on gmt 400s, they cause all sorts of whacky stuff there are a good amount of them on the truck. Start with engine to body and body to frame in the engine bay. clean metal and fasteners (apply copper coat or no ox to prevent future issues )the dissimilar metals...
SOLVED so i feel really dumb cause i attempted to use a timing light and assumed i got it....... i did not so i got ahold of a cheap bluetooth scantool and used it to get the distributor just right within +- 2 from 0 on the cam retardation.i used a bafx bluetooth scan tool and dashcommand on my...
Hello i have a 99 gmc k 3500 with a vortech 7400 454 it was having leak down issues and it was about time for gaskets.
So here is what i changed
New intake manifold gasket felpro
New plenum gasket felpro
8 new bosch 0280155884 19 lbs/hr 196 cc/min High Impedance injectors
New cap and roter ac...
I just acquired a ^ truck will not start and run I replaced the fuel filter and the coil and cap and rotor wires and plugs it will start and run for about 3 seconds like a champ then it's will slowly sputter out and die I was messing with the map sensor and if I tap the vacume tube on the port...