|
Re: 1986 C20 350/400 wont go past 2500 RPM in Drive
X2 on a clogged cat.
After the truck is warmed up, run it in 1st or 2nd gear at the peak power for about 20-30 seconds, then stop & look underneath the truck and see if the cat is glowing a dull red. Easier to see at night.
No glow & it's not the cat. Good luck w/ your investigation!
__________________
76' GMC K25 Sierra Classic Camper Special: propane powered 350ci/NV4500/205/D44/SRW 14B/4:10/tach,tilt,a/c - daily driver
77' GMC K35 Sierra Grande C/C: 350ci/SM465/205/D60/narrow 14B DRW/4:10
Flatbed
82' Chevrolet K30 C/C: 454ci/SM465/205/D60/narrow 14B DRW/4:56
Flatbed, 6"Rancho, Alcoa's
|