Hard starting

Thanks Ken for responding. The answers to your questions are No the engine did not start to run hot. And my battery is good.

Thanks

Ok I am really at my wits end on this. I first had a code scanner put on the truck and at that point it brought back the code for the Cam Position Sensor. So I replaced that only to have the same outcome (crank but not starting) I have never in all my years of driving and repairing my Chevy trucks have I had any issue like this. A mechanic had looked at it and told me it was the timing chain. I proceeded to putting in a new timing chain, I replaced the water pump and the thermostat since I had to pull the pump off to get to the timing chain and had never had to replace since I have owned the truck. I also put in new plugs and wires. New rotor and distributor cap/ I have replaced the crank position sensor, the coil, the ignition control module. Just about everything is new and as far as the engine cranking I can tell the difference with the new timing chain. However it still will not start. For some reason I cannot figure out for the life of me why it is not getting the spark that it needs to start. Reslly running out of time here got to start my new job this Sunday so I hope that all this will tell you all exactly what the issue is. Thanks for all your time.

Frustrated me.

Yes that is correct.

Okay, so not sure what I am missing. Hoping you will shed some light. So this is concerning the truck listed above Z71 Stepside, extended cab pickup that has the 5.7 Vortec. I have pretty much rebuilt this thing. I had the spider injection go bad on me and when my mechanic said it was to be over $900.00 for him to repair I had to opt to repair it myself. So have installed a brand new spider injector and after reassembly the truck fired right up after charging the battery only ran poorly. I went ahead and replaced the plugs and wires and after a small move of the distributor I had the truck running again. I just left the truck running that day because I am trying to let the gas that did reach the oil to burn off as suggested by one of your guys. Anyway after running for quite a while the truck shut off and would not restart so I just chalked it up to I had ran it out of gas. 4 or 5 days later I finally got a ride to get more gas, which I just got $10.00 worth and put that in the truck. Well I cranked and cranked it and it would not start. So I pumped the gas pedal to the point it should have been flooded. However I couldn’t even smell gas at all so I noticed it was getting fuel and I couldn’t hear the fuel pump kicking on so I went ahead and replaced the fuel pump, fuel filter (which does not have the arrow and the word flow on the side of it instead it has in on one end and out on the other end) and the fuel relay. Still cranking without starting. I can hear the pump kicking on again, I have disconnected the fuel filter and gas came out of it and when I push in the pin on the relief valve some gas comes out on top of the motor. I also disconnected the ground wire and scraped and sanded the section of the frame so that it is for sure got a good connection. Really frustrated at this point and not thinking straight I guess so hoping you can direct me to what I am over looking.

Okay, that was my next step. So is it possible that it is fouling out my plugs since I am trying to just let it run to burn off the fuel that got in the oil? And is there a way to get the gas completely out of the oil? Besides just keep changing the oil?

Okay, it started for a second with the starting fluid and then went back to just cranking. So got frustrated again yesterday and walked away from it and went and did something else. : ) When I decided to return to it I tried to start it and it acted like it was going to start but then on second attempt went right back to just cranking. I went ahead and replaced the ignition module and coil and after installing new parts it once again acted like it was going to start but then went right back to the same problem. I do still smell gas on the dipstick when I checked it yesterday. Added a little Seafoam t the oil today.

Okay, I will check the items you have suggested. I did replace the fuel pump sending unit and I replaced the fuel relay. Are you referring to the fuse box under the hood for the grey wire? I decided to walk through the whole truck today just to make sure that there was not anything that wasn't completely connected and I noticed this cable wire hanging. One end of it is bolted to the frame by the fuel spout and the other end is not connected. Do you know what this cable wire is for and where is it suppose to be connected to? Thanks a bunch for all your assistance I greatly appreciate it.

Hello Steve, Hope you had a great weekend. I'm so teed off I can't barely see straight. I have actually stumbled across what was causing my truck not to start and I am kicking myself for not even giving it a thought. However I have not even messed with it at all so guess that’s why I didn’t. At one point through this darn journey I had someone that knows this motor inside and out and he was going to make sure it was running. Just like everyone he talked the talk but never walked the walk when the whole time he was swapping my new parts with his old crappy parts from his 1997 Tahoe. So when I had gotten it running previously and it shut off and I thought I ran it out of gas and then thought the fuel pump had quit on me the reason that the truck had shut off when running was because the plugs that plug into the brain had vibrated loose and came unplugged and this happened because that so and so has also taken the clips that were on there to hold the plugs in. Anyway, I reconnected the plugs to the brain and secured then with tie straps for now and the truck fired right up. It is running rough so now I have to get things adjusted and get the timing right so that it will run right. Any suggestions on a easy method to set the timing?

Those last two words is what I am longing for. Lol When I got home tonight I removed the number 1 plug and hand crank the motor so that my marks on the crank pulley and block were lined up. Going to check the rotor tomorrow. Will let you know the outcome. Thanks again for all your assistance, its been a big help and greatly appreciated.

Hello Ken,

Sorry for the big delay. Okay, so the scan tool that I have does not have the option to check the retard offset however I came across a great deal for a new distributor, rotor, and cap so I went ahead and got it. I cranked the motor to line up the marks on the block and the crankshaft pulley so that it was at TDC. I pulled out the old and installed the new only to realize I was 180 off. So I cranked it around again and reinstalled the distributor and this time when it feel into place the rotor was pointing right where it was suppose to. Tightened everything down and reinstalled all the breather parts, filter etc. Truck fired right up and actually was running and idling really good. I adjusted the distributor just a hair while the truck was running. I was finally there so went for a test drive, Went about 8 blocks up the road and it ran good and turned around and headed beck to the house and it was still running god but then all of a sudden it started loosing power and just stopped 2 houses from my house right in the middle of the street. Dead. No juice to even try and restart. Well that great helper that I told you about earlier had swapped out alternators as well so the truck was running on battery alone. So it crapped out my new battery so had to replace that along with the alternator. Installed the rebuilt alternator and put in a brand new battery. First attempt to start the truck and it sounded like it was going to fire right up, then on second attempt it acted like the brand new battery was already drained. So what do you think the issue is now?

Thanks,
Tj