no start after plug wire change

[torquemonster]

I had a prob with the truck missing and stalling when it was raining found a plug boot burnt and missing chunks so I replaced all the wires one by one (not to mess up the firing order)and now a no start occasional back fire and weak spark also used a used coil any help will be appreciated I did check the firing order three times its not that I do have a weak spark on the #1 cyl

Topic

[college man]

whats the year,make,model and engine of the vehicle?
If the wires are new.next in line is cap,rotor and coil.

[torquemonster]

its a 95 chevy k1500 with the 350 5.7 tbi
:sick:

[spelunkerd]

You didn’t mention the plugs. Did you replace the plugs at the same time as the wires?

[torquemonster]

no I just pulled them out they are shiny black and smell like gas and a nother thing to add I was turning it over and It kept sounding like it was hydro locked every other revolution or so with every thing connected but if I unplugged the tbi injectors it didn’t do it

[torquemonster]

the video above shows a big bright blue spark mine is short small and more orange

[dreamer2355]

How are you checking for spark? With a spark tester?

+1 on the plugs, cap and rotor.

Did you check for vacuum leaks prior?

Whats the mileage on the motor?

[torquemonster]

Ill give it a shot seems timing is far off but not sure how to check valve timimg with out tearing into the front of the motor

[torquemonster]

A vaccume leak or two more than likley one for sure

[Daniel]

I believe this was in another thread and I recommended replacing the distributor cap and rotor. Make sure you use dielectric grease on the wires and cap gasket

[LJ11194]

Personally I’d replace the plugs, cap, rotor, and wires all at one time if I needed to do any of them. It might be alot more money but it also is worth it.

[torquemonster]

well im getting the cap and rotor tonight maybe even plugs kinda strapped for cash but gotta get it running so ill give it a shot

[EricTheCarGuy]

Given that this happened after you replaced the wires I think it’s worth checking your firing order again. If you have just 2 wires switched it can cause a condition like you describe.

[Author]

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