# Mustang will not start! **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [May 19, 2019, 4:53pm UTC](https://community.cartalk.com/t/mustang-will-not-start/140624 "2019-05-19T16:53:12Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [May 21, 2019, 12:53pm UTC](https://community.cartalk.com/t/mustang-will-not-start/140624/21 "2019-05-21T12:53:45Z")
I can’t tell if that sounds right from the video, sorry. A pressure test would give better data. Unhook the line at the high pressure pump, plug in a gauge and test it rather than guess at it. Would confirm its ability to create pressure. ---
**Author:** ![Mike\_Jonas](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@Mike\_Jonas](https://community.cartalk.com/u/Mike_Jonas)\ **Post date:** [May 21, 2019, 1:42pm UTC](https://community.cartalk.com/t/mustang-will-not-start/140624/22 "2019-05-21T13:42:18Z")
How much psi is normal pressure ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [May 21, 2019, 3:26pm UTC](https://community.cartalk.com/t/mustang-will-not-start/140624/23 "2019-05-21T15:26:43Z")
70 to 80 psi. Seems your car has a fuel pressure sensor. The data should be availble on whatever code scanner you have. Seems those sensors have been a problem on earlier Ecoboost Mustangs. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [May 21, 2019, 5:20pm UTC](https://community.cartalk.com/t/mustang-will-not-start/140624/24 "2019-05-21T17:20:37Z")
The high pressure fuel system can operate at over 2000 PSI, don’t mess with it. Start with measuring the low pressure supply, the low pressure pump specifications are 50.8 to 75.4 PSI. [Previous page](https://community.cartalk.com/t/mustang-will-not-start/140624.md?page=1)