Oil pressure

Asked by De2828 Jan 21, 2017 at 07:12 PM about the 2007 Chevrolet Avalanche LT RWD

Question type: Maintenance & Repair

I have a tapping noice on my 07 chevy
avalanche (and a misfire code 307 on the
same cilinder, not sure if related...)
I changed all the spark plugs and wires,
troubleshooter the coil sensor (good),
opened the head cover and flushed the
lifters and push rods with carburetor
cleaner and lubricated again. The push rod
on cilinder 7 is loose but not Brocken.
Put back together and drove; check engine
is home and truck rum smooth but tapping
noice still there, but got a message of "low
oil pressure, turn off engine!" Why is
that???
I'm planning to flush the oil tomorrow and
change oil filter. Any ideas?? I changed the
oil pressure sensor about 2 years ago

2 Answers
220,965

Rowefast answered 7 years ago

Ok you have a problem with #7. Either the lifter collapsed or just out of adjustment. That needs to be taken care of. Hopefully it is not a broken valve spring. This needs to be looked at by someone who knows. Thats why you are getting the po307 code......And spraying carb cleaner inside like that really is not good. You taking down all the oil for lubrication of the valves, & rocker arms.......I do not recommend a flush either. Seems to always cause more problems........On the oil pressure, there is a screen under the oil pressure sending unit that has to come out and get cleaned. This affects how the oil pressure is being read. The screen get clogged, so the oil sending unit reads low oil pressure shutting the engine down.

Mark helpful
157,445

Bob answered 7 years ago

Broken valve spring or a lifter that is bad and has ruined the cam.

Mark helpful

Your Answer:

Related Questions

  • Oil pressure 3 Answers

    I just bought a 2010 Chevy Avalanche 5.3 flex fuel 6 speed transmission, when driving, my oil pressure will drop from 40psi to 30psi is this normal for this vehicle? Where is the typical oil press...

    2010 Chevrolet Avalanche LTZ 4WD

    -

    Maintenance & Repair

  • Oil pressure 2 Answers

    Low oil pressure above 2,000 rpm. Was 80+ last two years. When it started getting cold this year, this happened. Still pegs the gauge at idle or driving like a grandma. Gm 5.3

    2005 Chevrolet Avalanche 1500 Z71 4WD

    -

    Maintenance & Repair

  • Oil pressure 2 Answers

    I have a tapping noice on my 07 chevy avalanche (and a misfire code 307 on the same cilinder, not sure if related...) I changed all the spark plugs and wires, troubleshooter the coil sensor (good),...

    2007 Chevrolet Avalanche LT RWD

    -

    Maintenance & Repair

  • Oil pressure 2 Answers

    I drove my truck to do a few errands yesterday and came back by the house to let my dogs out. Turned off the truck and when I came back to get in the truck, it wouldn't crank and oil pressure gau...

    2002 Chevrolet Avalanche 1500 4WD

    -

    Maintenance & Repair

  • Oil pressure 2 Answers

    My oil gauge sits at zero then will fluctuate to 80 randomly. I've checked my oil levels and there is no noises in the engine or over heat. Any ideas of what it could be? I also don't get any signa...

    2007 Chevrolet Avalanche LS RWD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Avalanche Questions

CarGurus Experts

  • #1
    sverden
    Reputation
    1,220
  • #2
    Mark Weiner
    Reputation
    570
  • #3
    GuruLW9BX
    Reputation
    530
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
214 Great Deals out of 8,009 listings starting at $1,500
Used Chevrolet Tahoe
13 Great Deals out of 822 listings starting at $9,980
Used Cadillac Escalade EXT
5 listings starting at $8,900
Used Ford F-150
314 Great Deals out of 13,742 listings starting at $3,800
Used GMC Sierra 1500
132 Great Deals out of 8,251 listings starting at $3,000
Used Chevrolet Colorado
40 Great Deals out of 1,211 listings starting at $4,995
Used Toyota Tundra
33 Great Deals out of 984 listings starting at $10,698
Used Cadillac Escalade
16 Great Deals out of 498 listings starting at $5,000
Used Dodge RAM 1500
3 Great Deals out of 90 listings starting at $2,500
Used GMC Yukon
14 Great Deals out of 981 listings starting at $3,000
Used Chevrolet Suburban
9 Great Deals out of 537 listings starting at $8,000
Used Toyota Tacoma
44 Great Deals out of 742 listings starting at $9,975
Used Chevrolet Silverado 2500HD
33 Great Deals out of 1,683 listings starting at $3,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.