Electrical Problem

[88SDIME]

I Noticed That There Seem To Be 2 Timing Marks On The Wheel Thingy (sorry Can't Rememer What Its Called). How Do I Know/tell Which One Is The Timing Mark. Ps. They Are Identical In Depth Size And Color

[88SDIME]

I Noticed That There Seem To Be 2 Timing Marks On The Wheel Thingy (sorry Can't Rememer What Its Called). How Do I Know/tell Which One Is The Timing Mark. Ps. They Are Identical In Depth Size And Color

[88SDIME]

Originally Posted by MT-2500

Somne parts places can test the module for you after it is off.
The dist module is just plug and play.
If it is bad replace it.

But a good idea to check base timing and for codes after you get it running.
Good Luck
MT

I GOT THE TIMING FIXED AFTER FIXING THE DIST, SHOULD I STILL GET IT CHECKED AFTER REPLACING THE MODULE?

[MT-2500]

Originally Posted by 88SDIME

I GOT THE TIMING FIXED AFTER FIXING THE DIST, SHOULD I STILL GET IT CHECKED AFTER REPLACING THE MODULE?

Changing the module does not change the timing.
Good luck
MT

[88SDIME]

Replaced The Module Still Won't "catch", Turns Over Just Fine, Definite Fuel / Air, Anything Else I Can Check Before Pulling The Dist For The Ign Coil

[MT-2500]

Originally Posted by 88SDIME

Replaced The Module Still Won't "catch", Turns Over Just Fine, Definite Fuel / Air, Anything Else I Can Check Before Pulling The Dist For The Ign Coil

Refrech our memory.
Is it still no spark from coil?
MT

[88SDIME]

Originally Posted by MT-2500

Refrech our memory.
Is it still no spark from coil?
MT

as far as i can tell no

[MT-2500]

Make sure ign switch is putting 12 volts to dist.
Make sure the ign coil and coil wire is good.
Make sure ign module is good.
Make sure the dist is turning when the engine is cranking.
If so replace the dist pickup coil.
MT

[Dennis60]

i dont know if uve resolved this problem but here goes. Ignition modules are subjected to a lot of heat and age or poor install will cause the engine to stall & restart or miss or even quit completely. Screws that attatch module are of unique length and thread so dont loose them and that is how the module is grounded. Use correct heat sink grease and insure module screws are tight. Replacement parts are available with lifetime quarentee - ull never buy another. Most parts stores will test them. I have a Bravada and it is absolutly the toughest distributor to get at and service.

[88SDIME]

Is There Something Called A Spark Sensor On This Engine (88 S-10 Blazer 4.3 V6) And If So Where Is It Located And How Do I Test It

[MT-2500]

No spark sensors.
The dist pickup module and dist pickup coil triggers the coil to get spark.
MT

[88SDIME]

Okay Back To Square One.....

Vehicle Description Is 88 S-10 Blazer W/ 4.3l V-6 Tbi. Problem Started By Engine Cutting Off While Driving, Figured Out The Cap Was Loose And Had Rocked Against The Rotor Until The Inside Got Tore Up. Took Cap Off And One Screw Was Broke Off In Dist. Pulled Dist To Get Out Screw And Then Had Problem Getting Back In. Once Got Fixed, Mechanic Set Timing And It Worked For About A Week, Then Started Cutting Off Again, And Finally Wouldn't Start. Replaced Cap, Rotor, Ign Coil, Ign Module And Finally Pickup Coil. Stil Will Not Start, Turns Over But Won't Catch. Fuel Pressure Is Good. And Number One Plug Is Getting Spark.
There Is Some Kind Of Filter Right Next To The Ign Coil And Is Plugged Into The Coil, What Is This?

[MT-2500]

If it is getting good spark and has good fuel pressure check for injector pulse.
And do a tap /twist test on the computer.
Not saying the computer is the problem but a lot of these years had a shorted board in the computers .
Drop the computer and let it hang down where you can get to it.
When it acts up or no start tap and or twist the computer.
If it acts up on a tap/twist test there is the problem.

The little thing on the coil may be a radio condenser.

[88SDIME]

How Do You Test For Injector Pulse, Where Exactly Is The Computer Located, And What Does The Radio Condensor Do?

[MT-2500]

Ther PCM is in cab under right side of dash.
To check for injector pulse you need a injector testing noid light.
Hook it to the injector driver wire and see if it flashes the light when cranking.
The raido condenser filters the electrical noise out.
Good Luck
MT