Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Does anyone know if you unplug your ESC module on a TPI 305, if the car will still start? My car will not start. It will act like it will want to fire, but will never start. I have it garaged for the winter, and have been tinkering around on it, and now it will not start. I replaced the cap and rotor and plug wires because there had been a miss in the engine, and then after I replaced those items, it acted like it it was worse, and not firing on all cylinders, and now it is not firing on any of them. It sounds like maybe one might be firing, but not enought to turn the motor over. I double checked the the plug wires, they are all correct. However, I unplugged the ESC and tryed starting it, and it acted the same weather it was plugged in or not.
if you unplugged the single wire like when you set the timing it'll start and run just fine. if you unplugged the multi wire harness to the est i'm not sure if it'd run or not. do you have spark? fuel? compression? it's got to be one of the 3 because that's all you need for it to fire.
__________________ MM Black Diamond 538 F&AM
Ex quocumque facere poteris te sauciabit, nihilo comprehenso.
Very good question. I will find out today. I know I have compression, I thought it could be a fuel problem, but I will check spark today...if it warms up here. High of only 10.
IF it started and ran before you did the plugs, wires etc, I'd start there.
Is the dist cap seated all the way down on the distributor? It's supposed to made to only fit one way, but beleive it or not, over the year, I've seen a couple of 'off' brand HEI caps that were made wrong and wouldn't fit right.
I see you have a 85, so you should have a coil-in-cap distributor. Did you mount the button in the top of the cap correctly? Did you hook the coil wires back up correctly when you switched the coil to the new cap?
Also check the power / tach wires to the dist cap. Those wires take alot of abuse over the years, and the main power to the distributor could be tweaked and not getting power.
HTH
__________________
Chris
85 IROC - Rebuilt T5,TPI 350, Hedman headers, and few other mods. Possibly for sale, email or PM if interested, LOTS of MODS and EXTRA parts included......
'03 GMC Z71 5.3 POSI..... stock for now
I checked for a spark, and it showed a orange colored spark. And I also tryed starting fluid in the intake, and it didnt react any diffrent with or without the starting fluid? Any Ideas???
i would say check the fuel pump. if you hear the whine from it then change out your fuel filter. sorry for my ignorance but is it a tbi? i'm buzzed sorry it says tpi. i'm going to stick with the fuel though.
Last edited by singleslammer; 01-26-2003 at 03:55 PM.
check the spark with a hei spark checker and not some home made or half assed method, there is a big differance. if you have spark with a hei spark checker and it won't light on starting fluid i'd be checking timing and compression.