# Fuel problems **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** bronco, ford\ **Created:** [February 16, 2011, 4:53am UTC](https://community.cartalk.com/t/fuel-problems/61412 "2011-02-16T04:53:36Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![93\_br0nc0](https://avatars.discourse-cdn.com/v4/letter/9/e19adc/32.png) [@93\_br0nc0](https://community.cartalk.com/u/93_br0nc0)\ **Post date:** [February 16, 2011, 4:53am UTC](https://community.cartalk.com/t/fuel-problems/61412/1 "2011-02-16T04:53:36Z")
I. Have a 93 bronco with a5.8 the truck will start up and run find for a while and then the engine gets really ruff satrts back firing and shuts off it only starts with starting fluid or after it sits for about 30 mins ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [February 16, 2011, 11:40am UTC](https://community.cartalk.com/t/fuel-problems/61412/2 "2011-02-16T11:40:56Z")
How many miles on your 93 Bronco? When was the last time you: - Replaced the spark plugs - Replaced the spark plug wires - Replaced the engine air filter - Replaced the fuel filter - Changed the oil a oil filter Good Luck ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [February 16, 2011, 12:33pm UTC](https://community.cartalk.com/t/fuel-problems/61412/3 "2011-02-16T12:33:17Z")
Have the fuel pressure tested. How old is the fuel filter? ---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [February 16, 2011, 2:00pm UTC](https://community.cartalk.com/t/fuel-problems/61412/4 "2011-02-16T14:00:17Z")
Check fuel pressure. Specs are key engine off 35-45 PSI. Engine running 30-40 PSI. ---
**Author:** ![93\_br0nc0](https://avatars.discourse-cdn.com/v4/letter/9/e19adc/32.png) [@93\_br0nc0](https://community.cartalk.com/u/93_br0nc0)\ **Post date:** [February 16, 2011, 4:03pm UTC](https://community.cartalk.com/t/fuel-problems/61412/5 "2011-02-16T16:03:38Z")
just changed the fuel filter along with cap and fuel pressure regulator and map sensor ---
**Author:** ![93\_br0nc0](https://avatars.discourse-cdn.com/v4/letter/9/e19adc/32.png) [@93\_br0nc0](https://community.cartalk.com/u/93_br0nc0)\ **Post date:** [February 16, 2011, 4:05pm UTC](https://community.cartalk.com/t/fuel-problems/61412/6 "2011-02-16T16:05:13Z")
Thank that was going to be my next step I just didn’t have the specs ---
**Author:** ![93\_br0nc0](https://avatars.discourse-cdn.com/v4/letter/9/e19adc/32.png) [@93\_br0nc0](https://community.cartalk.com/u/93_br0nc0)\ **Post date:** [February 16, 2011, 4:06pm UTC](https://community.cartalk.com/t/fuel-problems/61412/7 "2011-02-16T16:06:37Z")
And also the rotor ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [February 16, 2011, 5:22pm UTC](https://community.cartalk.com/t/fuel-problems/61412/8 "2011-02-16T17:22:36Z")
This model Bronco is also a TFI-IV ignition model and the modules are very prone to heat failures. The symptoms can vary quite a bit but the ones your vehicle has can easily match a module problem. Testing the module may or may not reveal whether it’s bad or not. The question of whether to replace the module is often an educated guess more than anything else because it may test fine and still be faulty. Do a net search for TFI-IV Settlement and you can read about the details there.