# Blazer help **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet, blazer\ **Created:** [October 7, 2009, 3:11pm UTC](https://community.cartalk.com/t/blazer-help/37739 "2009-10-07T15:11:06Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![wiggja](https://avatars.discourse-cdn.com/v4/letter/w/cab0a1/32.png) [@wiggja](https://community.cartalk.com/u/wiggja)\ **Post date:** [October 7, 2009, 3:11pm UTC](https://community.cartalk.com/t/blazer-help/37739/1 "2009-10-07T15:11:06Z")
1999 Blazer ,no power on hills. 90,000 miles. What could be the problem. ---
**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\ **Post date:** [October 7, 2009, 8:13pm UTC](https://community.cartalk.com/t/blazer-help/37739/2 "2009-10-07T20:13:34Z")
Bad plugs and/or bad plug wires. A compression test may show a problem. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [October 7, 2009, 9:57pm UTC](https://community.cartalk.com/t/blazer-help/37739/3 "2009-10-07T21:57:41Z")
What is the maintenance record of this vehicle? Did you have the major 90k service done? If not, you need to begin with essential maintenance before you try to start “cherry-picking” items to replace. ---
**Author:** ![hd72mm](https://avatars.discourse-cdn.com/v4/letter/h/9fc29f/32.png) [@hd72mm](https://community.cartalk.com/u/hd72mm)\ **Post date:** [October 7, 2009, 10:00pm UTC](https://community.cartalk.com/t/blazer-help/37739/4 "2009-10-07T22:00:10Z")
Check fuel filter and fuel pressure ---
**Author:** ![pgdyk1](https://avatars.discourse-cdn.com/v4/letter/p/dbc845/32.png) [@pgdyk1](https://community.cartalk.com/u/pgdyk1)\ **Post date:** [October 8, 2009, 8:45am UTC](https://community.cartalk.com/t/blazer-help/37739/5 "2009-10-08T08:45:44Z")
I agree, and take it to a mechanic to get a compression/leakdown test. Also, did this “problem” happen overnight?