Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Where is the ecm located and how do I replace it or have it tested

(1990 Buick Century)
in Canton, PA on March 16, 2015
I have replaced and tested every other electrical part in my 90 Buick Century. But for some reason I don't get any spark from the motor. I am very confused and don't know what to do next. I really need help to figure out what is wrong with my car it is the only vehicle that I have so please help.
Displaying 1 answer & 0 comments
Popular Answer
on June 20, 2015
It is under your coils where all the spark plugs come to one place. I believe this is the right front of your engine. Before you replace that, check to make sure you have power at your camshaft and crankshaft sensors. It is in my opinion that your timing chain is the problem. Take your oil cap off and manually turn the engine and see if there is any movement from the rocker arms. The ignition switch can also cause this problem. Maken sure the key is off and battery disconnected before you turn the engine.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I turn the key the car will not start no lights in side or out side will come on the battery is good and hot,
Im trying to replace shift solenoid a. i need to know which solenoid a is. i need a diagram or something
Didn't find what you were looking for?