Re: ignition problems... help please
Congrats on your new buy. I'm sure you've worked hard for the money to purchase the car.
First action you should take is to buy a Haynes manual for the make/model of car. It's invaluable as to the info held within.
From reading your posts, it reads as an intermittent problem. A Code 12 from the ALDL connector is a good sign-the ECM is working. Each DTC, diagnostic trouble code, for a hard failure, will be held in memory and be ready for recall when asked upon. The string of codes will flash each number three times, then the next code will flash three times and so on, until the list has been gone through, then the ECM will repeat itself.
So, returning to your problem - no start, er, no run. you have said holding the plug wire with a screwdriver from a good ground and cranking the engine over does not produce a spark. This symptom means the distributor, commonly known as the Optispark, needs replacement - very common problem with the LT-1 engine.
Along with replacement of the distributor, one usually changes the water pump also as the w/pump has to be removed to change the dist. Can you see a Snowball Effect here?
The rest of the Snowball is coolant has to be drained, new coolant?
New thermostat also?
New hoses and clamps?
New accessory belts?
New plug wires?
New spark plugs?
New air filter?
Oil change & filter change?
Please, don't get me wrong and I know you're on a budget, who isn't? But things to consider. I believe the most important would be the dist and water pump. You can use a coffee filter to filter the coolant back into the system - don't forget the air bleed to purge the air from the system. You will have to check coolant level quite often to get the level back up to prevent from overheating. Then tackle the replacement list later as monies arrive. The manual will tell & show you how to do them all. Its not the best, but better than nothing.
Shop around for parts to get the better pricing. However, remember, you pay for what you get. I'm sure other members here will agree.
Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.