# 1990 Ford F-150 turns over but won’t start

**URL:** <https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898>\
**Category:** Maintenance/Repairs\
**Tags:** f-150, ford\
**Created:** [August 22, 2021, 8:04pm UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898 "2021-08-22T20:04:17Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![ford15](https://avatars.discourse-cdn.com/v4/letter/f/977dab/32.png) [@ford15](https://community.cartalk.com/u/ford15)\
**Post date:** [August 22, 2021, 8:04pm UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/1 "2021-08-22T20:04:17Z")

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turn over , but no start issues

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**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:** [August 22, 2021, 8:30pm UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/2 "2021-08-22T20:30:53Z")

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are you getting spark? fuel? have any codes/

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [August 24, 2021, 12:43am UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/3 "2021-08-24T00:43:44Z")

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WW above is spot on. First check for diagnostic codes. If none, then my first guess would be a spark problem. You might be able to use a spare spark plug to check for visible spark during cranking.

I had the same problem on an older (than yours) Ford truck. I did the spark test and it sparked ok, but produced an orange-ish spark. I decided the orange-ish spark wasn’t the problem so proceeded to check for fuel to the carb, and fuel in the carb bowl. Both tested ok. Turned out the orange-ish spark _was_ the problem, caused by some oxidation on the points contact surfaces. The points actually looked new by appearance, but when I measured their resistance, 10 ohm. 10 ohms is no good. I used some emery paper to clean the points , started right up. To make this more challenging, it all occurred in a Home Depot parking lot. I had to go into the store several times to buy the tools I needed … lol …

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**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:** [August 24, 2021, 12:55am UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/4 "2021-08-24T00:55:38Z")

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A bad ignition control module can cause that.

 ![image](https://global.discourse-cdn.com/cartalk/original/3X/5/6/563dae02eb2f9e0d9304b0d74bf850a42bb98471.jpeg)

And here’s how to pull codes from your OBDI Ford.

[https://straighttalkautomotive.com/OBD1/ford-OBD-I.html](https://straighttalkautomotive.com/OBD1/ford-OBD-I.html)

But if the Check Engine ain’t on?

Good luck!

Tester

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**Author:** ![monkarl](https://avatars.discourse-cdn.com/v4/letter/m/919ad9/32.png) [@monkarl](https://community.cartalk.com/u/monkarl)\
**Post date:** [August 24, 2021, 4:09am UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/5 "2021-08-24T04:09:15Z")

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Can you hear the fuel pump when key is turned on?

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [August 24, 2021, 4:59pm UTC](https://community.cartalk.com/t/1990-ford-f-150-turns-over-but-won-t-start/178898/6 "2021-08-24T16:59:35Z")

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It’s near impossible to even make a half accurate guess when no one knows what is missing; spark, fuel pressure, or injector pulse. Not likely the latter…

The injection and ignition system on these cars is dirt simple so sorting it out should be easy.
