Cadillac Escalade The full sized sport utility vehicle that has combined the versatility of an SUV with the luxury associated with the Cadillac name

2003 escalade reduced engine power

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Old Sep 11, 2023 | 08:06 PM
  #1  
clapped03cadi's Avatar
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Default 2003 escalade reduced engine power

recently got a 2003 esclade for free, it was in limp mode or “reduced engine power” mode. so i pulled the throttle body off, cleaned it really well and all the connectors, and it made it worse and gave me more codes. p1516, p2135, p0120, p0220. all connectors are clean. is there any way to test the tps/ tpp sensor to see if it’s bad? has anybody else had this issue or a similar issue and knows how to fix?
 
Old Feb 18, 2025 | 04:38 AM
  #2  
Rainracer's Avatar
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Joined: May 2022
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From: Ozarks
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Check your grounds. that p1516 is your issue
heres a video i found that may help.
 
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