engine light on

2004 CADILLAC SEVILLE
131,411 MILES
Avatar
DANE1962
  • MEMBER
  • 10 POSTS
I have had it checked at 2 different service centers..the first told me it was a vaccuum leak in the intake. the second has told me it is the power steering pressure hose leaking and the codes are p0463 and p0507. would the power steering pressure c
hose cause it to throw these codes?
Nov 25, 2011 at 4:56 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
Are there any driveability issues? P0463 have to do with instrument cluster/fuel level. P0507 has to do with idle speed.
Nov 25, 2011 at 6:28 PM
Advertisement
Avatar
DANE1962
  • MEMBER
  • 10 POSTS
it has a rough idle at times. we just had the plugs changed in it and thought that would fix the problem, and they are the ones that told us that it had a vacuum leak.
Nov 25, 2011 at 6:57 PM
Avatar
JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
Yes, a vacuum leak can effect idle.
Nov 25, 2011 at 9:08 PM
Avatar
DANE1962
  • MEMBER
  • 10 POSTS
Yes, i am aware that a vacuum leak can cause it but what I was asking is if the power steering pressure hose can cause it to idle rough and cause the engine light to come on.
Nov 25, 2011 at 9:17 PM
Avatar
JDL
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,098 POSTS
There may be a power steering pressure sensor, that could cause issues? I can't see much from here. All I can do is make suggestions, the rest is up to you.
Nov 25, 2011 at 9:57 PM
Avatar
DANE1962
  • MEMBER
  • 10 POSTS
thank you for your help
Nov 25, 2011 at 10:01 PM
Avatar
MHPAUTOS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 31,937 POSTS
I feel that the power steering leak will not affect the idle, if it is fitted with a P/steer switch this increase the idle when load is applied to steering at idle as in parking this raises the idle speed to maintain steering feel, i would be investigating vacuum leaks for the issues you have.
Nov 26, 2011 at 1:03 AM
Avatar
DANE1962
  • MEMBER
  • 10 POSTS
thanks for your help
Nov 26, 2011 at 2:31 PM