Hi New here and LOVE Rangers. Mine has a strange issue. 1990 xlt 2.9L manual 4x4. When first start of the day, after start I push accelerator and it has a hesitation like not getting fuel. Where start?

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Welcome to FTE.
Use your scan tool, or code reader to scan the computer for trouble code clues & post All code Numbers, as they can help focus a trouble shoot.

Your vintage vehicle is OBD-1 diagnostics, so if you don't have a scan tool, or code reader, you can still scan for codes by accessing the under hood DLC & following the options listed here Ford ? OBD/OBD2 Trouble Codes, or with a jumper wire, you can have the dash CEL blink the codes, your choice.

If you don't want to do that, many auto parts stores are no longer equipped with OBD-1 code readers but you can call around & ask, as if they do have, most will scan at no charge.

Then post up All trouble code Numbers & the forum can then make informed trouble shooting suggestions, based on those code clues.