Question about 1987 Pontiac Fiero

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I have a 1987 fiero gt with a 2.8 v6. After setting for a winter, the car would not start. Fuel pump wasn't running, so I replaced it and it now pumps but still car will not start. Removed and cleaned injectors, replaced coil, plugs, distributor cap, rotor - still will not start. Car will run briefly with spray of starter fluid.. Please help!!!

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You need to do a little detective work here. Based on your question it appears the engine is not getting gas. You changed/cleaned the injectors, yes. Do you test them somehow to see if they were actually squirting fuel. In the injector system the fuel pump fills and holds constant pressure on the fuel rail. The injectors get their fuel from the rail and an electric pulse causes the injector to open for a split second to shoot fuel into the cylinder. If you have the right tools you can test the fuel rail pressure to see if the pump is actually delivering fuel and pressure to the injectors. If so, you need to verify that the injectors are being electrically "turned off/on" to squirt fuel into the cylinder. Usually you can hear them clicking when the engine is turning over before it starts. It will be clicking pretty quickly but you can hear it if you get close. You can also put a screwdriver (big one) by your ear and touch the metal end on the engine near the injector. The screwdriver acts as a poor mans stethoscope. Try it it works, just be careful you don't touch anything electrically charged! My thought is that the fuel pump and fuel delivery system is not getting fuel to the injectors. Could also be caused by a dirty( maybe plugged) fuel filter. You said the fuel pump was not running, that should be a big clue to the final problem. Look for fuel to had dried or jelled when the car was sitting. Fuel doesn't stay in good condition very long and the injection system uses very small ports so they can become clogged pretty easily. hope this helps, good luck, worm1855

Posted on Jan 17, 2011

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1 Answer

1987 fiero 6 cyl. Started and drove for 2 miles. Car died. Will crank over. Am getting spark and can smell gas. Can hear the pump click on and off. Could it be the filter or the fuel pump?


the fuel pump should not just click it should go brrrrrrrrrrrrrrrrrrrrrrrrrrb and stop after it reaches a certain pressure-cheers Denny

Nov 10, 2013 | 1987 Pontiac Fiero

1 Answer

MY 1985 FIERO GT V6 CRANKS BUT WILL NOT START. IT SAT WITHOUT BEING RUN FOR 2 YEARS. IT STARTED UP FOR ABOUT WEEKS AND NOW WHEN I TURN THE KEY ON IT JUST CRANKS BUT WON'T START . HAD FUEL PRESSURE...


More than likely since the car sat for so long with fuel in it that it separated. There is water in fuel and when it sits for an extended amount of time it will rust in side the tank and get into your fuel lines and even your fuel pump. First thing you could do is by some fuel treatment and run it through. it should hopefully break up anything inside there that could be impeding the fuel from getting into the carb.
Also check the leads inside the distributor. when a car sits for that long the seals can dry out and allow moisture in, corroding them and not allowing a spark to enter the cylinder and ignite the fuel.
Just remember that a car needs only three things to run 1. Spark 2. Fuel 3. Air
If you have all of those then the car will should start. Hope this helps. Good luck.

Aug 31, 2011 | Pontiac Fiero Cars & Trucks

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Car tries to start but won't stay running. I do not hear the fuel pump pre prime and do not get fuel flow when i turn the key on. When i crank it the motor i do get fuel flow. I have replaced the pump...


The fuel pump may need replaced. Unfortunately most newer vehicles have an electric pump located inside the gas tank so it's not a simple job to replace the pump. Please rate this answer, thanks.

Feb 05, 2011 | 1987 Pontiac Fiero

1 Answer

What is the 1987 pontiac fiero gt v6 check engine light code list?


CODE 12- NO DISTRIBUTOR REFERENCE PULSES ECM. CODE 13- OXYGEN CIRCUIT. CODE 14- COOLANT SENSOR HIGH TEMP CODE 15- COOLANT SENSOR LOW TEMP. CODE 21 - THROTTLE POSITION SENSOR VOLTAGE HIGH.CODE 22 - THROTTLE POSITION SENSOR VOLTAGE LOW.CODE - 23 MIXTURE CONTROL SOLENOID.FOR CARBURETOR ENGINE. CODE 24 -VECHICLE SPEED SENSOR. CODE 32 - BARO CIRCUIT LOW.CODE 32 - FUEL INJECTED EGR VALVE VACUUM SWITCH SHORTED TO GROUND.OR EGR VALVE SOLENOID CIRCUIT OPEN. CODE 33 - MAP SENSOR.CODE 34 - VACUUM SENSOR OR MAP SENSOR.CODE 35 - IDLE SPEED CONTROL. CODE 41 - EST CIRCUIT. CODE 42 - ELECTRONIC SPARK TIMING.CODE 43 - ELECTRONIC SPARK CONTROL UNIT. CODE 44 - LEAN EXHAUST.CODE 45 - RICH EXHAUST. CODE 51 - PROM OR MEM CAL.CODE 52 - CALPAK. CODE 53 -EGR VALVE CARBURETED ENGINE THE EGR VALVE VACUUM SENSOR HAS RECEIVED IMPROPER EGR VACUUM. CODE 54 - M C SOLENOID CARBURETED ENGINE MIXTURE CONTROL SOLENOID SHORTED OR FAULTY ECM.CODE 54- FUEL INJECTED ENGINE FUEL PUMP VOLTAGE IS LOW.CODE 55 - ECM MAKE SURE PCM GROUND CONNECTIONS ARE TIGHT.IF OKAY.REPLACE THE ECM.

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3 Answers

I have a 88 Fiero GT V6 that has sat for over a year without starting. I put in 5 gallons of gas, and used starting fluid. Starts, but only keeps running while fuel is poured into intake. I suspect water...


1) Running fuel pump to remove water from tank will likely not empty it all, but it might help. Will still be some liquid in bottom of tank.

2) More than likely, the gas has gummed up and is no good, While your draining of the tank will help, may still need to change the fuel filter and clean the injectors. The ability to keep engine running while pouring into the intake is a good sign, but mayfind that more parts need to be cleaned and replaced prior to solving the problem.

Oct 19, 2009 | 1988 Pontiac Fiero

2 Answers

Overheating


if that is dual exhaust and has seperate catylatic converters.... check that the one on that side is not plugged up.

Robert

Sep 10, 2008 | 1987 Pontiac Fiero

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