mediabops.blogg.se - 1989 ford f150 fuel pump driver module location

You can find the ignition coil test here: Ignition Coil Test -No Spark No Start Tests (Ford 4.9L, 5.0L, 5.8L).If you do get spark from the ignition coil's tower, then now you know that the distributor cap and rotor are fried and need to be replaced.

So testing for spark directly on the ignition coil is the best way to check this.

The distributor cap and rotor can go bad and not deliver the spark that the ignition coil is delivering to them.

Check for spark directly on the ignition coil tower.

Go to: No Start 2: Checking Fuel.ĬASE 2: Spark was NOT present in all of the cylinders A number of things can cause this no spark result. So, if you do have spark, the next step in your troubleshooting is to verify fuel pressure.

You don't have to spend any time testing them or any money replacing them.

That the PIP (Profile Ignition Pickup) sensor is OK.That the ignition control module is OK.Let's assume that you have already tested for spark and you observed one of the following spark test results:ĬASE 1: Spark was present in all of the cylinders A spark result, if you're using a dedicated spark tester, tells you that: The idea behind checking for spark is to see if all of the 8 engine cylinders are getting spark. So my recommendation is to test for spark right off the bat to see if spark is missing from the mix (air, fuel and spark). In my opinion (and in my experience), the most problematic area, when it comes to a cranks but does not start problem, is the ignition system.