What will cause a 'p0506' code?

Asked by Jan 01, 2013 at 12:23 PM about the 2007 Chevrolet TrailBlazer

Question type: Maintenance & Repair

At a stop sign rpm drops to 500 with a slight shudder. Run fine otherwise.

7 Answers

125

not exactly sure but a similar prob on my pathfinder points to the TPS (throttle position sensor) but it may go by a different name for your make. also since its a GMC product you might have a metering sensor to change. i think this is call a MAP or MAF sensor, very easy to DIY but the sensors are anywhere from 80 to 200 bucks. as for the actual code identification, what i have found is that auto zone in my area, will read the code, tell you what it means and sell you the part if you wish to buy it. no high pressure and they dont charge for the diagnostic read and id.

261,425

I'd say you either have a vacuum leak, clogged PCV, a dirty IAC and or throttle body. I'd clean the throttle body and IAC of carbon first with the appropriate cleaner. Then inspect for vacuum leaks.

125

answers on blogs like these can take you down many paths. i'd say that since you have the code number your best bet is to go to a mechanic shop or parts store and let them tell you exactly what that code means. parts stores are usually very good at id-ing things like that and they have diagrams to show you where the part is located. again, you'll get many different answers on these sites and some will be right on the money, but many including mine may not be. use the code number knowledge you have to actually get an accurate answer.

1 of 1 people found this helpful.
102,185

Along with the other suggestions, check/clean/replace the air filter.

3,145

p0506 means idle speed low i would clean throttle plate and bore and check for stuff staying on that would cause a extra load on the engine

35,545

Also check your pulleys. A bound up idler pulley may not cause a belt squeak and will put a huge load on your engine.

1 of 1 people found this helpful.

One possible cause is if your fuel pump is not functioning correctly or defective. Also check your fuel pressure regulator.Incorrect fuel supply to the engine will cause low idle that tends your engine to stop.

Your Answer

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,329 nationwide TrailBlazer listings starting at $1,400.

ZIP:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    970
  • #2
    Tom Demyan
    Reputation
    890
  • #3
    tennisshoes
    Reputation
    710
View All

Related Models For Sale

Used Chevrolet Tahoe
791 Great Deals out of 42,151 listings starting at $1,980
Used Jeep Grand Cherokee
959 Great Deals out of 72,507 listings starting at $1,200
Used Chevrolet Silverado 1500
2,425 Great Deals out of 174,060 listings starting at $699
Used GMC Envoy
43 Great Deals out of 2,028 listings starting at $1,900
Used Dodge Charger
358 Great Deals out of 30,285 listings starting at $2,000
Used Ford Explorer
1,067 Great Deals out of 70,904 listings starting at $1,000
Used Chevrolet TrailBlazer EXT
10 Great Deals out of 995 listings starting at $2,195
Used Chevrolet Impala
549 Great Deals out of 34,952 listings starting at $1,495
Used Chevrolet Equinox
1,029 Great Deals out of 62,485 listings starting at $760
Used Ford F-150
2,844 Great Deals out of 213,249 listings starting at $1,295
Used Dodge Durango
305 Great Deals out of 23,997 listings starting at $1,500
Used GMC Yukon
591 Great Deals out of 22,305 listings starting at $2,500

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
4 Great Deals out of 103 listings starting at $4,295
2008 Chevrolet TrailBlazer For Sale
24 Great Deals out of 705 listings starting at $1,995
2007 Chevrolet TrailBlazer For Sale
32 Great Deals out of 713 listings starting at $1,995
2006 Chevrolet TrailBlazer For Sale
4 Great Deals out of 708 listings starting at $2,173
2005 Chevrolet TrailBlazer For Sale
16 Great Deals out of 605 listings starting at $1,400

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.