Can Anyone Help, Please!!!!!!!!!!!
I Am Dealing With A '90 Lumina 4 Dr. 2.5l That Will Not Run.
It Is Not Mine (belongs To My Mother), And It Has Only Run @ 1 Month Out Of The 5 It's Been Around. When She First Got The Car It Was Very Nice, 98k, Ran Great. 1st Day She Had It I Detailed It, And Cleaned The Engine, Taking Care To Avoid Electronics. As Soon As I Finished And Left The Car Wash, The Car Began Missing And Idling Very Rough. Drove It Around Awhile, And It Seemed To Dry Out And Run Better. Ever Since, It Has Not Been Right. It Will Run Fine Some Days, Not At All Others; It Has Hard Starting When Cold, Rough Idle, Bad Gas Mileage, Stalling,and Backfires. Also It Has An Intermittent "engine" Light, But It Doesn't Drop A Code.... 3 Seperate Mechanics Have Diagnosed This P.o.s. To The End, And (we) Have Replaced Plugs, Wires, Cat. Converter, Fuel Pump, Various Sensors, All To No Avail. Car Has Sat Idle For Past 2-3 Months Because It's Not Safe To Drive Even Around The Block. I've Brushed Up On This Car With A Couple Of Manuals, And Am Going To Try To Replace The Coil Packs (very Possible Therein Lies The Problem), Egr Valve, Since It's Not Connected To The Computer On This Car, And/or The Ecm.
I've Noticed From This Forum This Seems To Be An Incredibly Common Problem With These, 4 Banger Or V6.....
Also, Where The Hell Is The Ecm Located? I'm Going To Try And Snag One From A Junkyard If The Other 2 Don't Take Care Of It. This Car Is Junkyard Bound If It Isn't Fixed Soon, And Is Too Nice, Otherwise, To Have That Happen.
Does Anyone Have Any Other Suggestions????