Q: Reduced engine power icon on

asked by on November 04, 2016

Hey guys. I have a 2004 Cadillac SRX. Around two months ago the reduce engine power icon popped up. I took the car to mechanic and used OBD tool to scan code gave code saying throttle position sensor is faulty. We call the dealership and order both the sensor and the throttlebody because they're not sold separately. We install the part and reduced engine power icon disappears and I thought everything was OK now. Today The icon popped up again and I use the OBD two scanner and the same diagnostic popped up. I also noticed there was a little bit of oil in the intake hose that connects to the throttlebody when I disassembled it please help don't know what to do

My car has 178000 miles.
My car has an automatic transmission.

Hello - there are 2 problems here. The wiring pigtail to the throttle position sensor (TPS) is likely bad and making a poor connection. This is a known problem with this model and engine. Replace the pigtail connector to the TPS. The oil you notice in the intake hose suggests a bad PCV valve, which should be replaced. For assistance with these issues, I would recommend having a Electrical Problems Inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose the TPS problem, get an accurate assessment of damage and cost estimate for repairs. I would recommend a PCV Valve Replacement Service to correct the PCV valve problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

04 jeep liberty 3.7 cranks but does not start

If the engine cranks at adequate RPM, be sure there is adequate fuel in the fuel tank and that the fuel is not old. Download any OBD-II trouble codes that have been stored and examine those codes for diagnostic clues....

Multiple leaking parts

CV axles leak from the a dust boot. Inside the dust boot is a special high temperature grease that provides lubrication to the joint. If the grease leaks, the joint will be damaged from the lack of lubrication and extreme...

I was going through the undercarriage wash at carswash n my f150 shut off...i could start itup right away again it showed low oil

Since the vehicle stalled it would display the low oil pressure until you started it back up. The fact that the outside temperature is so cold and the water hot it could of got into a wire connector that caused...

Related articles

The Best Used Cars to Buy If You’re an Architect
Obviously, Obviously, architects appreciate beauty and symmetry. This is not just the case when it comes to their building projects, but also in terms of the vehicles they choose. We have evaluated several used cars, and identified the Mercedes...
A Buyer's Guide to the 2012 Cadillac Escalade ESV
When When most people think of the Cadillac Escalade, two words generally come to mind: power and luxury. The 2012 Cadillac Escalade ESV is no different. However, with this model, you can throw in another word: efficient. This hybrid carries...
A Buyer's Guide to the 2012 Cadillac Escalade Hybrid
Even Even with hybrids being all the rage these days, you might find it hard to imagine a full-size SUV embracing this new tech. However, the 2012 Cadillac Escalade Hybrid should be all that it takes to show you what’s...