New 20G/No start

[viperman5]

I have just replaced the stock turbo with a 20g. I bolted all the feed and return lines back up then removed the wire from the coil to the distributor cap. I then primed the turbo by turning the truck over 5 times then performing the task 4 more times. I reconnected the wire to the coil and the truck will not start.

I have double checked the firing order and spark plugs are all connected as I changed them while the turbo was off.

Is the truck flooded now? Am I missing something? Any help is appreciated.

Thanks,
Jay

 

[DynaGlide]

Re: New 20G/No start

I'm by no means an expert, but it does make sense to me that there is too much fuel in the comb chambers. Every time you were turning it over to prime the turbo cartridge, you were also spraying fuel into the cylinders. Every exhaust stroke should have been expelling some of the fuel, but perhaps not all of it. If you'd checked and rechecked, and then checked again for good measure that the plugs and distributor match up correctly, I'd give it a while and try it again. When priming the oil lines, it might be a good idea to pull the fuel pump fuse. I believe that its ECMB. It has been a long time though, and I'm probably wrong. I haven't looked at that part of my truck in a year now... :lol:

 

[dgoodhue]

Re: New 20G/No start

Check the ECM fuses. Does it seem like a spark of fuel issue? (No spark equal fuel in the tail pipe) Does it turn over freely?

 

[viperman5]

Re: New 20G/No start

I looked at the plugs and they looked wet. I am going to put in the new plugs I have laying around.
Thanks

 

[jwaller]

Re: New 20G/No start

put your foot to the floor as your cranking and it will turn on clear flood mode and keep craking till she fires. dont exceed 30 sec with the starter or you might damage it.

 

[viperman5]

Re: New 20G/No start

Guys,
I put new plugs in, checked the fuses, and floored it while cranking. And nothing worked. All I did was unplug the coil and plug it back in. The fuel pump is working. What tests can I do for spark? Or any other ideas?

Thanks

 

[AUSyTyIN]

Re: New 20G/No start

Timing gun will tell you if you have spark. Or you can put one of the old plugs into one of the wires, ground the plug, and see if it sparks (out of the motor)

 

[viperman5]

Re: New 20G/No start

Thanks everyone for the help. I am going to let the truck sit for a week since the work is being done at my parents. I will check for spark and make sure the plugs are dry and see if the Ty will start. I regret priming the turbo (recommended by Deadbolt) as I think I ended up flooding it.

 

[bogey317]

Re: New 20G/No start

Most tool guys sell a spark checker for under 10 bucks (small light that plugs between plug and wire) an invaluable tool that saves alot of time

 

[Silly]

Re: New 20G/No start

Thanks everyone for the help. I am going to let the truck sit for a week since the work is being done at my parents. I will check for spark and make sure the plugs are dry and see if the Ty will start. I regret priming the turbo (recommended by Deadbolt) as I think I ended up flooding it.

Where in chicago are you? Drop me a pm and maybe I can help

 

[berzerker]

Re: New 20G/No start

did u disconnect the battery when you did the job ? maybe forgot wiring ,,

truck have an alarm ? make sure the alarm isn't messing with you.


check all the fuses with test lite ?

 

[bouser]

Re: New 20G/No start

if you just pulled the wire from the the cap you most likely smoked the ign. mod. same thing happened to me once.

 

[viperman5]

Re: New 20G/No start

Ignition module.... really? My new plan of attack is to let the car sit for a couple more days. I am going to pull the dipstick to see if I smell fuel. This will let me know if I flooded the truck. I will then try starting it. If it works, I am happy and I will change the oil right away. If it doesn't start, I will change the ignition module which was done in the last 2K miles BTW.

 

[SEL777]

Re: New 20G/No start

Damn man I was hoping to get a ride with the new turbo set up. Are you coming out to Hooters on SAT anyways?

 

[gmcturbo]

Re: New 20G/No start

check your fuel pressure and spark.

 

[viperman5]

Re: New 20G/No start

Just to finish up this thread, the truck was flooded. I let it sit for about 10 days and it fired right up. I could smell fuel in the oil so I went ahead and did a oil change.
Thanks everyone.

 

[AUSyTyIN]

Re: New 20G/No start

Good to hear, glad it's running again :tup:

 

[ghettosled]

Re: New 20G/No start

pull the coil wire at the cap and turn it sideways so you can watch the spark jump from the coil to the distributor cap. if you have spark then you may not have fuel.. In order to check for fuel, turn the ign on and listen for the fuel pump to prime.. If you dont have a gauge handy, you can hold your hand on the regulator and feel fuel flowing through. If you dont hear or feel the pump working check the relay on the firewall (driverside far right of brake booster). If its not clicking then check your ECM B fuse.. lower right on fuel block. If both of these things are working you should atleast have an attemped start or feel the "pop" of it trying to start.

 

[FORTINN]

Re: New 20G/No start

Have you taken the TY out for a test drive with the new 20G?

 

[Rexxenexx]

Re: New 20G/No start

I want to get my stocker upgraded to a 20g soon. How do you prevent this from happening??