Skip the auto shop - Our mechanics make house calls

Q: No start

asked by on

when driving my truck died like someone shut it off . I've had no spark so I replaced the pickup coil, control module, and ignition coil . and now when I checked my coil out at the coil wire with a screw driver to a ground to see if I was getting spark it sparks 1 time spark and then no spark after . I checked all my wiring and its all good. Would you have any idea what it might be. Any advice would be greatly appreciated. Thanks in advance
My car has an automatic transmission.

You need to check for battery voltage on the red wire to the coil with the key in the on position and then check the same wire when you go to the crank position. If either one is not as specified then ignition switch is at fault. Now check the the other wire dark green and yellow striped wire on the coil. You should use a test light to see if this wire blinks when you crank the vehicle. If it does not blink, the the TFI module pigtail wire for timing should be disconnected to see if you now can start the motor. If this doesn’t work then you have most likely a bad TFI module or distributor stator in the distributor itself. But, with distributor cap off, make sure distributor rotor is turning or not. If not, check timing chain or distributor gear. The most common problem will be that the TFI module is bad. If you’d like some help wit these checks, consider YourMechanic, as a certified technician can diagnose your starting issue and help you fix it accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Won't Start

Hello! It sounds like you may have an issue relating to power getting from the battery to the starter. Since the power door locks do work, this suggests it is not an issue of battery connectivity, but perhaps power being...

Q: Bad battery, lights come up on the dash, won’t start

You may be experiencing an issue with the Electronic Steering Control Lock. This part most commonly causes the vehicle to not start but can also cause some unique electrical issues. It sounds like you have checked the common issues like...

Q: Truck wont run for more than a couple minutes at a time.

It sounds like you are losing fuel pressure, but if you've replaced everything you've mentioned (except the fuel pump relay) the first test I would perform is to see if you're losing spark. There may be several factors causing a...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...