Several months ago I brought my 4-cylendar, auto-trans camry to a local shop for major maintenance work (120,000 miles on it). After the work, I noticed there are new problems that I never had:
- Poor gas mileage: 15 mpg. (used to be 22+ mpg)
- Some noise coming from engine when accelerating.
- Some noise coming from rear (muffler side) when accelerating.
- Noticeable engine vibration when car reach 3000 rpm, especially in low gears.
I brought it back to the local shop but they denied any wrong doing and refuse to any further service to fix the problems. Here are the works they've done (listed in the statement.)
.Change oil & filter .Clean and adjust brakes rear .Drain & refill differential .Drain & refill radiator .Drain & refill transmission .Install air filter .Install fuel injection chemical .Install spark plugs .Replace brake fluid .Replace distributor cap .Replace fuel filter .Replace motor mount .Replace PCV valve .Replace radiator .Replace valve cover gasket .Replace wire - 4 Cyl .Replace cam & crank seales .Replace timing belt
Can any one know which part(s) of works causing the problems? The car used to run very nice untill the local shop ruin it.
Thank you in advance.