Hey guys. I replaced the fuel pump on my 99 hoe last month. I noticed a problem before I done this that is still occurring. Whenever I go up an incline I seem to lose power and the vehicle shudders badly. The steeper the incline , the worse the shudder. It will also do it on a less steep inline if it is long enough. The key seems to be the engine rpm's . When they get low enough , especially in overdrive on the highway,that is where it happens. It cranks and runs fine though and seems to have plenty of throttle when I need it , even when shuddering. Thanks for any help.
Loss of power
- Thread starter ricky68
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
ncdrtyhoe
Full Access Member
- Joined
- Sep 26, 2010
- Posts
- 100
- Reaction score
- 8
Could be the torque converter.
SunlitComet
OBS Jedi-Do Good
If it is shuddering in first, second and perhaps the third you may be misfiring. If it only happens in overdrive and the torque converter locks up the converter clutch could be worn out, the solenoids for it are malfunctioning or the brake light switch is malfunctioning(also kills the cruise control system).
SunlitComet
OBS Jedi-Do Good
then try replacing your brake light switch if you want to take a $15 quick shot at the problem. If it does not fix it you are better off getting it scanned.
Your Vehicle: 1999 Chevy Truck K Tahoe 4WD V8-5.7L VIN R
Vehicle » Lighting and Horns » Brake Light Switch » Service and Repair
Notes Service and Repair REMOVAL PROCEDURE
For information on stoplamp circuit diagnosis, refer to Lighting and Horns.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
Your Vehicle: 1999 Chevy Truck K Tahoe 4WD V8-5.7L VIN R
Vehicle » Lighting and Horns » Brake Light Switch » Service and Repair
For information on stoplamp circuit diagnosis, refer to Lighting and Horns.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
- Disconnect the negative battery cable.
- Disable the SIR.
- Remove the pushrod retainer from the brake pedal pin. Use snap ring pliers.
- Unsnap the stoplamp switch from the pushrod.
- Disconnect the electrical connector from the stoplamp switch.
- Connect the electrical connector to the stoplamp switch.
- Snap the stoplamp switch onto the pushrod.
- Install a new pushrod retainer on the brake pedal pin. Use an 11 mm (7/16 inch) socket in order to push a new clip onto the pin.
- Connect the negative battery cable.
- Enable the SIR.
