I have replaced several different things on my truck, crank sensor, cam shaft sensor,coil, ignition module,rotary cap & rotary button. But there is still no spark to the distributor. I also checked all of the fuses & they are good. I just cant figure it out. I need someone's help please! My truck hasnt been running for about 4 days now
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need. goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Check to see if you are getting spark from the coil to the distributor. I suppose the engine is a 5.7 liter?If not getting spark to the cap, then check for power and ground pulse at the coil.If there is spark at the cap, replace the ignition rotor. If there is no power or ground pulse at the coil,check to see if the ignition rotor is spinning when the starter is engaged. If the distributor is not spinning while cranking the engine there are several more things you'll need to check,i.e.,distributor gear and pin as well as oil pump if the pin or gear are damaged.
Spark is created by the ignition module and crank shaft sensor remove distributor cap and use a logic probe red led shows positive voltage green shows negative voltage. the crank sensor has two wires with key on touch the leads and find the power side then have someone crank it over logic probe should flash a yellow color or toggle green red (2 bulb model) that shows a good sensor replace module. stays red then replace sensor.
coil is located inside of the distributor assembly. so is the crank sensor. did you have the timing belt replaced?? the distributor is driven by l/h side cam shaft, but if the timing belt breaks, the cam will not spin and you will not have any spark, because the distributor is not spinning. remove the distributor cap and crank engine and observe if the rotor is spinning. it should be. start there.
First does the rotor turn when cranking engine?? possible timing chain is out or stripped gear..are you sure it has no spark??did you verify this with a high output spark tester ? did you spray starting fluid in the tbi unit ?
Several things can cause this problem, cracked distributor cap, old ignition rotor. Or if you have coil packs, cracked coil pack, ignition control module, crank position sensor, cam position sensor. Coil pack parts and sensors can be checked by autozone, cap and rotor will have corrosion on the rotor, however a small crack in the distributor cap can be next to impossible to see, replacement is usually best option.
Often, modules and sensors are not the problem, rather the wiring that connects them. Check wiring attached to each of the items mentioned to see if signals are being transmitted to and from them according to factory specs. (specs are often difficult to acquire) Also check fuses. Not so sure about the 99 Avenger but most vehicles to not determine spark timing soley from the cam shaft positioning sensor, rather the crank shaft positioning sensor. Also, the ignition coil on late model vehicles are nortorious for failing because of heat cracking the plastic housing.
1979 ford 400 Drove inot shop did a cam shaft change and put all back together and no spark! put new coil , distributor, eletronic brian , wires ,rotor, cap, and check wire harness for brroken wires . still no spark? ANY IDEAS??
You need to check for spark at the number 1 spark plug if no spark then
it could be a few things
1.crank shaft position sensor
2. distributor cap or plugs
3. pick up coil inside distributor
4. ignition coil
6.Blowen fuse check both engine fuses and inside cab fuses
7. oil pressure switch
You can pull the coil wire going into the distributor cap and check for
spark there if no spark there then your problem will be from the
ignition coil back