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I have a 91 cadillac sedan deville with just 60,000 miles on it....recently had the battery changed, engine tune up and oil change done by a backyard mechanic...Car started misfiring, stalling and losing power...even my gas mileage fell drastically from 13 MPG to 4.5MPG....Utterly devastated I took it to the dealership to have the problems checked. First the technician stated that he had to do a compression test to find the problem which would cost me $350...after the compression test he stated that 4 cylinders were not firing and I needed replacement. Utterly devasted I asked him if he checked my spark plugs or for that matter the fuel injectors? At this he stated he will get back to me. The next day he called me and stated that there were 2 different set of spark plugs were used and some had oil foul etc etc...On further insisting him to diagonize the problem instead of offhandedly asking me to replace th engine...he stated that he would change the spark plugs and see if the cylinders fire....Today he called me and stated that the engine runs better than before but the spark plugs need to be changed, some cables connected to the spark plugs need replacement and some of the fuel injectors have leaks which need replacement. Then finally he stated that the catalytic convertor needs to be replaced as well since something fuzed and damaged the catalytic convertor. My predicament is the technician did not come up with any solution after the compression test and wants to charge me $350....and with all that he stated that the total will come to $1700.....Now should I proceed with the repairs since he was not honest in the first place. If not will be okay for me to find a wayside garage to get the job done? Someone please help me
I replaced it with a new battery, did an engine tune up and oil change and the problems started....before this my car was running perfectly. I took it to the dealership and I was informed that my engine failed the compression test. They also found out that the previous mechanic who did my engine tune up used different brands of spark plugs and they did not look like new. Now they want me to just kiss my car good bye. I am devasted...Please help with any advice.