Misfire/stall Fiat 124 Spider

Asked by Mar 18, 2016 at 01:12 PM about the 1977 Fiat 124 Spider

Question type: Maintenance & Repair

Shortly after gassing up and cruising at about 70 mph, my Fiat 124 Spider misfired, backfired and stalled out.  When that has happened in the past it has been because of an over-heated ignition coil.  I carry an extra and when I have replaced it, the car starts immediately and runs well.  This time, not.  Had to get a tow home.  The car will start and run for a few moments, misfire, with the tach jumping, and stall and refuse to start for some time.  The battery charge indicator does not come on when the key is on, however, the battery seems to be holding a good charge.  I've used dry-gas just to make sure the recent fill-up wasn't at fault and have put in a new coil.  Any suggested diagnoses would be appreciated.

4 Answers

77,895

Are you still running points and condenser or solid state ignition?

1 out of 1 people think this is helpful.

converted to electronic ignition years ago.

77,895

Ok then look for the spark control module and replace it, next check the voltage going to your coil it should be around 9 volts at the positive connector at the coil, if battery voltage then that is why your coil is running hot, install a ballast resistor in the coil power wire to drop the voltage to the 9 volts, a parts store should stock one. The charge light has too operate for the charging system to operate properly, it might be ok now but soon it won't. HTH

1 out of 1 people think this is helpful.
25

My 1980 Spider started running lousy one night and only ran at high RPMs. Fortunately I was a few blocks from home and was able to park it in my driveway. To make a long story short, I replaced several components but found that the car ran fine for @ five minutes when cold and then developed the same symptoms. I discovered that the multi-strand wire from the temperature sending unit (front of engine near top of radiator) only had a few unbroken strands. I repaired the wire connection and the car now runs fine. The car was apparently running extremely rich once the engine warmed up. This may not be your problem but it is easy to visually check for this condition.

Your Answer

Add photo

Related Questions

  • Fiat spider electrical 1 answer

    When starting 1982 fiat spider, with key on, sometimes the alternator light won't illuminate, and the fuel injunction circuit isn't getting power, so it won't start. Any idea of which solenoid is n...

    1982 Fiat 124 Spider

    -

    Maintenance & Repair

  • Fiat Spider clutch shudder 1 answer

    I have a '77 Fiat Spider that develops a "shudder" in first gear after it is driven several miles. It takes off smoothly in first gear at first, and is fine in every other gear, but begins to shudd...

    1977 Fiat 124 Spider

    -

    Maintenance & Repair

  • 1971 Spider 124 Gears won't engage while car in on 6 answers

    When the car is not running I can shift the gears as normal. No Problem. When I start the engine, there is trouble engaging the gears. Once running it is stuck in one gear and won't shift to any oth...

    1971 Fiat 124 Spider

    -

    Maintenance & Repair

  • My 1981 Fiat Spider starts and runs for a couple of seconds then shuts off, can anyone help me diagnosis and fix this problem? 5 answers

    My 1981 Fiat Spider starts and runs for a couple of seconds then shuts off

    1981 Fiat 124 Spider

    -

    Maintenance & Repair

  • 1969 Fiat 124 Spider 1400 2 answers

    I want to sell my 1969 Fiat 124 Spider 1400, all original, with soft and har top, original paint, with 24,000 kms. What would be a good price to offer it?

    1969 Fiat 124 Spider

    -

    Shopping & Pricing

124 Spider

Looking for a Used 124 Spider in your area?

CarGurus has 273 nationwide 124 Spider listings starting at $31,354.

Postal Code:

Search Fiat 124 Spider Questions

Fiat 124 Spider Experts

#1 jamnblues
jamnblues
Reputation 80
#2 Rowefast
Rowefast
Reputation 40
#3 oaksburner
oaksburner
Reputation 30
View All

Related Models For Sale

Used Ford Mustang
11 Great Deals out of 836 listings starting at $2,995
Used Chevrolet Corvette
409 listings starting at $8,993
Used Chevrolet Camaro
3 Great Deals out of 869 listings starting at $10,995
Used Porsche 911
6 Great Deals out of 149 listings starting at $25,988
Used BMW 3 Series
140 Great Deals out of 1,587 listings starting at $1,700
Used Dodge Challenger
3 Great Deals out of 739 listings starting at $14,985
Used Dodge Charger
43 Great Deals out of 709 listings starting at $1,995

Used Cars For Sale

2017 Fiat 124 Spider For Sale
273 listings starting at $31,354