Truck will not crank-- just replaced distributor cap and rotor
The first problem I had afterward was the check engine light came on, reporting multiple misfires in the cylinders. After a while, it would kind of shake when I was driving it. Then, after work one evening, it wouldn't start. Like, the motor would try to turn over and all, but wouldn't actually crank. I believe that my battery and alternator are fine. My headlamps and radio and all will come on full-force --no dim lights or anything, and there appears to be no corrosion on the battery, so I don't think it's the battery or alternator. (I could be wrong.) My worry is that my plug wires were crossed when the distributor was reconnected. I am female and have worked on fords, but not chevies --still, my experience is limited. I have no one to help me in the small town where I have moved.
Re: Truck will not crank-- just replaced distributor cap...
Yes this can happen,my brother crossed some of his wires and it ran for awhile but very rough and then would fail to start after the computer started picking up so many codes it did not know what to do. Start by correcting the wires but if they are the original ones they should be replaced.
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5.9 aren't prone to this, But pull the distributor cap. Have someone crank the engine and watch to see if the rotor moves. Also put the number one piston on top dead center on the compression stroke (remove the spark plug to check compression side). See where the rotor sets compared to a diagram At top dead center.. Sounds like the chain broke (unlikely) or jumped.
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.
you said you repl dist cap that means you don't have a crank sensor you have electronic ing module. remove your elec ing module have it tested most auto parts stores could test your module, or check your coil at the neg terminal. should have power. if not you lost your primary volt from your batt.your secondary power is coming from your electronic ing module from the module to the pos terminal on the coil, when the eng cranks,from the coil to the dist cap , from the dist cap center to the rotor then out to the plugs,this all happen pervided the timing belt or timing chain is ok. the cumbustion chainber needs 3 things , thats fuel, air, and spark.
The rotor is somehow making direct contact with one or more distributor contacts.
Check the contacts inthe cap to see if you find any physical damage to one or more contacts caused by the rotor.
Could be rotor lead too long (file it down) or maybe the distributor shaft is bent or not seated. Remove cap and observe the distributor shaft as someone cranks the engine. Does it wobble? Can't tell? Place a stiff reference parallel to the shaft and turn engine again.
Connect a timing light to the number one plug wire and crank the engine. Does the light flash indicating that the Number one is firing? Look at the distributor. If you have a distributor cap and rotor assembly remove the distributor cap and crank the engine. If the rotor turns check the rotor to make sure there is a good contact point and check the distributor cap to ensure there are good contacts. If either is damaged or worn replace them both. If the rotor does not turn you have a broken timing belt or one of the timing belt/chain guides has jammed and the engine needs to be rebuilt.
If you not running the OEM cap and rotor that's where your problem may be. The after market cap and rotor is not as heavy as the OEM and when the two screws that hold down the cap to the distributor is torqued to high,it warps the cap and that's where your problem may be. Remove the cap and inspect the inside and look for abnormal arching, you may want to replace the cap and rotor again. The other thing to is the breather screen in the distributor is known to get plugged up with dirty creating condensation which promote corrosion in the distributor there was a service bulletin from GM to service the screen when working on the distributor or during tune up's. Good luck and hope this helps. Keep me posted, be glad to help.