91 ford exp, shakes/vibrates when i press on the gas

[quote:c87d46950a="melxena"]my truck shakes when i press on the gas. when i release the gas it stops?? it gets worse by the day? 91 ford, 4x4, 4.0, 6cyl, manual trans.
thank you for your time.[/quote:c87d46950a]

Is it shaking while stationary or on the move?

no, it only shakes when i press on the gas, when i am coasting it is fine, when i am at a stop it is fine.

thank you

[quote:6ccee0d949="rasmataz"][quote:6ccee0d949="melxena"]my truck shakes when i press on the gas. when i release the gas it stops?? it gets worse by the day? 91 ford, 4x4, 4.0, 6cyl, manual trans.
thank you for your time.[/quote:6ccee0d949]

Is it shaking while stationary or on the move?[/quote:6ccee0d949]

no, it doesnt shake when i am stopped or when i release the gas.

[quote:03d88750ba="melxena"][quote:03d88750ba="rasmataz"][quote:03d88750ba="melxena"]my truck shakes when i press on the gas. when i release the gas it stops?? it gets worse by the day? 91 ford, 4x4, 4.0, 6cyl, manual trans.
thank you for your time.[/quote:03d88750ba]

Is it shaking while stationary or on the move?[/quote:03d88750ba]

no, it doesnt shake when i am stopped or when i release the gas.[/quote:03d88750ba]

Check the sparkplug wires might be loose or needs replacement