# 2003 Jeep engine cranks but won't start **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** wrangler, jeep\ **Created:** [January 23, 2022, 5:15pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074 "2022-01-23T17:15:31Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![woodyandsue\_176929](https://avatars.discourse-cdn.com/v4/letter/w/ac91a4/32.png) [@woodyandsue\_176929](https://community.cartalk.com/u/woodyandsue_176929)\ **Post date:** [January 23, 2022, 5:15pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/1 "2022-01-23T17:15:31Z")
A friend stopped by this morning because his 2003 Jeep wrangler died on the way to work. He just replaced the battery, and it seemed fine till this morning. Any ideas if starter fluid into air intake doesn’t work? I see from a previous post that it might. Thanks! ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [January 23, 2022, 5:22pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/2 "2022-01-23T17:22:13Z")
I would check to make sure the alternator is charging the battery. also check the battery cables for an internal break or corrosion. make sure connectors are tight and clean. ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [January 23, 2022, 5:30pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/3 "2022-01-23T17:30:23Z")
> [@woodyandsue\_176929](#): > > Any ideas if starter fluid into air intake doesn’t work? If that makes no difference when cranking, it’s a sign there’s no spark. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [January 23, 2022, 5:30pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/4 "2022-01-23T17:30:44Z")
If the vehicle just turned off with no warning, the crankshaft position sensor may have failed > **[Bad Crankshaft Position Sensor Symptoms & Problems](https://www.1aauto.com/content/articles/bad-or-failing-crankshaft-position-sensor-symptoms)** > > Problems with the crankshaft sensor will often present as problems with engine timing. If you think your sensor has failed, here are some common symptoms of a bad crankshaft sensor that can help you in determining whether or not it has failed. Tester ---
**Author:** ![woodyandsue\_176929](https://avatars.discourse-cdn.com/v4/letter/w/ac91a4/32.png) [@woodyandsue\_176929](https://community.cartalk.com/u/woodyandsue_176929)\ **Post date:** [January 23, 2022, 5:42pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/5 "2022-01-23T17:42:43Z")
Appreciate replies- will share with him later to check out. His Jeep’s a couple of miles from here. ---
**Author:** ![woodyandsue\_176929](https://avatars.discourse-cdn.com/v4/letter/w/ac91a4/32.png) [@woodyandsue\_176929](https://community.cartalk.com/u/woodyandsue_176929)\ **Post date:** [January 23, 2022, 9:33pm UTC](https://community.cartalk.com/t/2003-jeep-engine-cranks-but-wont-start/182074/6 "2022-01-23T21:33:39Z")
Well, my husband’s towing him home. If I find out what the solution is I’ll be sure to pass it on— Solution was starter fluid sprayed into the air filter; the engine started immediately and continued running. It was @ 7 degrees F when problem began, and @ 28 degrees when it started. They suspect it was a frozen gas line. Fortunately, a simple solution this time that may help others. cheers