99 Tahoe

Hello, I have a problem with my 99 tahoe Z71. While accelerating in 3rd and 4th gear it will keep loosing power. It is almost like a misfire and will happen in small spurts. It will never happen in 1st or 2nd gear though. Does anyone have any ideas?

Is it loosing power or is the trans slipping? If the RPMs are increasing, it could be the 3-4 Clutch pack is worn.

//2000CAYukon

At first I did think it was the transmission, but the rpms don't jump and I opened the window and you can hear the exhaust cut out when it happens

At first I did think it was the transmission, but the rpms don't jump and I opened the window and you can hear the exhaust cut out when it happens

check fuel pressure with guage...also replace fuel filter every 30,ooomi....

need around 60psi....on shut down must hold pressure...