99 Burb Loss of power/ Studders

Asked by NavyMDV Apr 10, 2019 at 10:24 AM about the 1999 Chevrolet Suburban K1500 LT 4WD

Question type: Maintenance & Repair

Truck studders and has loss of power when
pushing on the gas.  Works ok if flat ground
and I slowly give her gas.  She hates hills and
1500 RPMs/ OD.  She does better in 3rd and
above 2000RPM.  She starts and idles like
new.  

I have given her new wires and plugs, gas
filter, changed both Cats, Intake Manifold
temperature sensor, fuel injection idle control
valve, O2 sensor and throttle position sensor.
Cleand K&N air filter and throttle body.  

My next ghost chase is a vacuum leak, but
not sure how to properly do that.  She
seemed to run fine before I shipped her from
Guam back to the states.  

1 Answer

27,390

Sounds like OD shudder, happens with vehicle under load, especially going up a hill. Shift into D from od and shudder goes away. When on flat ground shift back into OD. I'm not a transmission person. Just my opinion.

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