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am i being paranoid?

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  • am i being paranoid?

    so i got this 86 fiero about 2weeks ago, been a little busy, so hadnt realy had time to "check into" the engine much, the oil gauge was pretty accurate(a bit bouncy but the way it pegs itself im sure that the sender), and the temp would stay pretty low, like ~120ish
    i foundout the temp issue today, the thermostat was crushed, well...the U bracket thing aparently broke free from the stat on the one side, and the other side bent, so it was basicly running open. put a new stat- in, temps fine now, but i noticed it would climb to almost the red mark while idling (the fan is perm-on atm, the prevoius owner was 2lazy to change the switch so he hard-wired it on), if i hit the throttle, it will quickly drop back to normal, anyone have any ideas on this issue?

    the next is i hooked a fuel and vaccume gauge up just to see how things are sitting, the fuel was at about 36, and droped slightly when i hit the throttle, is that normal? i though it should raise a bit? possibly bad regulator? when i got the car the vac line to the regulator was unpluged and the T connector for it from the manifold had a plug in it.

    as for the vacuum, the gauge goes from about 18-21lbs wont hold steady, once the car warms up, it getts a slight rough idle, i pulled the cap off, the cap and rotor look pretty new (as does the wires), but the distributor was a bit rusty inside, and the coil looked to have a good bit of age on it, i wouldnt have been too worried about htat cept it did itself a nice exhaust pop when i let off the gas from reving it to about ~3k while checking the fuel/vac (it currently has no muffler on it)

    am i being paranoid about the fuel and vac, or is it something i should look more into?

  • #2
    well i talked to a few of the shops we deal with threw my job, and they all said its probly a bad FPR if it drops like htat on throttle, and given that it wasnt hookedup when i got the car, thats probly why..
    i just picked up a rail off fiero.com that has an adjustable FPR already installed, hopefully that fixes the pressure issue... ima do a full tuneup this weekend (including coil and dist pickup/mod) and hope the vac issue was an ignition miss like it kinda sounds.

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    • #3
      i would think that the exhaust pop would have been the fact that you have no muffler. hell my z will pop like that when i DO have a muffler sometimes lol
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      • #4
        well the FPR is def bad...
        no vac it reads nice and high, and under idle vac it reads lower the O.E. should be and under reving it almost drops to 15psi now :/

        i started pulling my plenium off lastnight, god damn fiero and using 12point bolts on the top, i had a set got most them off, but theres one thats smaller then the rest.. i think that ones getting the pliers

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