# 1999 GMC Safari will not run **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** safari, l, gmc, engines\ **Created:** [December 31, 2007, 6:49pm UTC](https://community.cartalk.com/t/1999-gmc-safari-will-not-run/8884 "2007-12-31T18:49:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![mrdenty](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mrdenty](https://community.cartalk.com/u/mrdenty)\ **Post date:** [December 31, 2007, 6:49pm UTC](https://community.cartalk.com/t/1999-gmc-safari-will-not-run/8884/1 "2007-12-31T18:49:36Z")
1999 GMC Safari with a V6 4.3 Vortec engine and about 130K miles will not run. Plugs and wires replaced, fuel filter less than 1 year old, plenty of fuel getting to engine, plenty of spark available at the plugs and very recent scanner check showing no problems with any sensors, etc. as well as displaying no error or problem codes. It cranks over but absolutely refuses to run. Any ideas? ---
**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\ **Post date:** [December 31, 2007, 7:05pm UTC](https://community.cartalk.com/t/1999-gmc-safari-will-not-run/8884/2 "2007-12-31T19:05:40Z")
What happens if you spray some starting fluid into the intake while cranking? I am assuming that this engine is does not have Throttle Body Injection. Can you hear the injectors clicking while the engine is cranking? Is number one spark occurring anywhere near the timing mark on a repeatable basis? Get back to us with what you find. ---
**Author:** ![mrdenty](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mrdenty](https://community.cartalk.com/u/mrdenty)\ **Post date:** [December 31, 2007, 7:32pm UTC](https://community.cartalk.com/t/1999-gmc-safari-will-not-run/8884/3 "2007-12-31T19:32:50Z")
Have not used starting fluid, but have used gasoline - and still will not start. Engine does have throttle body injection. Will check on the rest of your answer.