Question about 1985 Pontiac Fiero
Another quick way to isolate a spark or fuel problem is to spray starting fluid into it then crank it up. If it fires up and runs a few seconds, it's a fuel issue, if not then it's probably a spark issue. If it cranks up, the fuel issues can be many. Mine happened to be the fuel pump went out. Isolate the fuel pump issue first. When you turn the key on you should hear the fuel pump run for a couple of seconds. If you don't, it's probably the fuel pump or the wiring (relay) to the fuel pump. Even if you do hear it (as was my case), it can still be the problem as there is a rubber hose that connects the fuel pump to the fuel line that can deteriorate and come off. So if you you can hear the pump run, make sure the fuel is making it to the throttlebody. If you loosen the fuel filter after the pump has ran, there will be pressure in it and it will spray fuel out (make sure there are no ignition sources if you do that). If you have a V6, there is a pressure releaf valve on the fuel rail, you can check there. If nothing comes out after or with the fuel pump running, that little hose came off and you'll have to get to the fuel pump in the fuel tank. If you go to that trouble, replace it, you're there anyway.
Posted on Apr 29, 2010
Have some one crank the car for u as u check if u gettin any sprk from the distrponer ,,, if u dont get any spark check if ur coil getin any spark and u have 2 be carefull it could shock u but wont hurt as bad as u think ,,if the coil is not getin any spark it one of the two pick up coil or moudle i would go with the moudle first its eaast to replace unsrew the the distponier than there u go the moudle infornt of you 2scrws on it take out relpace it put it 2gother and crank ;)
Posted on Apr 22, 2010
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Posted on Jan 02, 2017
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