Check gauges light and oil pressure

10

Asked by May 17, 2015 at 12:56 PM about the 2002 Chevrolet TrailBlazer LT 4WD

Question type: Maintenance & Repair

I had an issue with check gauges light and oil pressure dropping to 0 only when slowing down.  Had a new oil pump and sensor replaced a month ago and same thing is happening again??? Any ideas??

3 Answers

67,375

Could be an early warning sign of worn bearings. This is especially suspect if you have high mileage. HTH. -Jim

1 of 1 people found this helpful.
10

Jim , Can you be more specific?

1 of 1 people found this helpful.
67,375

In the engine. Most likely worn crankshaft bearings. If you have high mileage I'd suspect that. Worn bearings aren't always noisy (knock) in the beginning. Sometimes an oil pressure problem, as you've described, comes first. Then the knocking. How is it when the engine is cold? If ok when cold that's another sign of worn bearings. Try a heavier weight oil, such as 10W- 40, as a "Band-Aid". If it improves that's what it'll be. The only other thing that I can suggest is a worn or stuck relief valve at the oil filter assembly. If stuck closed your oil pressure will drop off at idle as well. HTH. -Jim

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,752 nationwide TrailBlazer listings starting at $999.

ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 Tom Demyan
Tom Demyan
Reputation 830
#2 bigdogracer
bigdogracer
Reputation 790
#3 dandyoun
dandyoun
Reputation 620
View All

Related Models For Sale

Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500
Used Jeep Grand Cherokee
1,024 Great Deals out of 72,253 listings starting at $700
Used GMC Envoy
61 Great Deals out of 2,161 listings starting at $850
Used Chevrolet Silverado 1500
1,773 Great Deals out of 181,200 listings starting at $250
Used Chevrolet TrailBlazer EXT
26 Great Deals out of 977 listings starting at $800
Used Ford Explorer
928 Great Deals out of 70,251 listings starting at $997
Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Chevrolet Camaro
243 Great Deals out of 31,194 listings starting at $369
Used Chevrolet Blazer
3 Great Deals out of 1,188 listings starting at $1,820
Used Ford F-150
2,055 Great Deals out of 207,336 listings starting at $1,499
Used Dodge Durango
268 Great Deals out of 21,293 listings starting at $1,499
Used Ford Escape
1,431 Great Deals out of 90,837 listings starting at $900

Used Cars For Sale

2007 Chevrolet TrailBlazer LT 4WD For Sale
9 Great Deals out of 152 listings starting at $2,800
2006 Chevrolet TrailBlazer LT 4WD For Sale
7 Great Deals out of 122 listings starting at $1,995
2005 Chevrolet TrailBlazer LT 4WD For Sale
6 Great Deals out of 135 listings starting at $2,450

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.