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Your 1988 fiero v6 automatic stalls out at road ends it only does it occasionally what could it be?
Inspect all your vacuum lines, particularly the rubber tubing end portions that join the nylon tubes to their connecting points on the engine. While it's uncommon for the rigid nylon tubes themselves to break, it's very common for the rubber segments on the ends that connect the nylon tubes to the engine to rot and crack out of site, appearing fine on visual inspection while being nearly severed. The inertia of stopping or turning may flex the tubing at the cracks, causing the engine to stall out. It's a good idea to check Fiero vacuum connections a few times each year now that the cars are older. The higher than average temperatures in the Fiero's mid-engine compartment cause parts like this to deteriorate more rapidly than in other cars. Consider replacing all those rubber portions at the ends at once since it's cheap to do, requiring only a couple feet of tubing to replace all the ends.
What else can I help you with?
What can you do to a 2.5 in a fiero to get more peformance?
You could start with getting a high flow airfilter. If gas millage is of little importance, you could unplug your o2 sensor go to http://www.westcoastfiero.com/ for more cool stuff
How do you install the turn signal arm on a 1985 Fiero Got the old one out but can not seem to reinstall the new?
Insert arm into hole. make sure keyway on arm is in the groove. While pushing in, rotate wiper speed portion of arm until it starts to go in. Then rotate wash lever until it locks in place.
1988 Pontiac fiero gt with a automatic transmission that won't shift in reverse?
Check your Automatic Transmission fluid level
Does my 1986 Fiero 2M6 automatic Trans have a governor if so how do you remove it?
No the transmission does not have a governor.
Does a 1985 Pontiac fiero have a transmission solenoid?
The automatic has one for the lock up torque converter
How do you install the pilot bushing on a 1984 Pontiac Fiero?
Don't bother, neither the manual or automatic use it
How fast does a Pontiac fiero go?
Best top speed for a stock V-6 Fiero: 135 mph Worst: 115 mph Both Fieros were '85 GT's, the latter with an automatic transmission.
86 automatic Fiero headlights do come up but do not turn on the rest of the lights work fine what could it be?
check fuses and connections at the headlights and the switch in the dash, make sure your headlights are good ;-) that's a start...
Does your 1986 Fiero 2M6 automatic Trans have a governor if so how do you remove it?
Yes. The THM125C has a governor. The governor is just below the speedometer sensor. 1986 Pontiac fiero service manual section 125C page 22.
You can get your 86 fiero to start but it wont stay running?
Check the fuel pressure on the Fiero to start with. It sounds like it could be starving for fuel.
What could be the cause of my enigne idleing to high on a 87 fiero gt?
You probably have a cracked EGR tube The Fiero Store has replacements Google them
What transmission came with the 4-cylinder 2.5 1986 Pontiac fiero?
The Automatic was generally known as the THM125 The manual was built by Getrag
Do you need the EGR valve in 85 fiero gt?
It is required by law in some places and if you block it off the check engine light will occasionally come on.
Is a automatic 1986 fiero gt better then a manual 1986 fiero 2m6?
The GT is cooler The 5 spd will get better fuel mileage and better racing times The auto is easier to drive, smoother and all around a more pleasant car.
