whats up i have a 89 with 174K i had a problem with it missfireing change plugs an wires an no fix so No check eng was on an i could not fig it out no the light just came on like 2 weeks latta an i read the codes an replaced the dis mod an air temp sencor car ran fine after words no a week latter i have a nother problem the upper rad hose gets hard as a rock every one aroundhere is telling me its the thermastat so i replaced it same thing they told me i have air in the system so i did that no when i gets hot it wont run right wont take the fuel my fuel pump is howling like **** put seem to be geting alot of feul what cpuld it be i ready to torch the danm thing need help real bad 