The engines make sudden movements(somewhat shakes) during idle time and when i release the break; and when I try to accelerate-it's like a car is bumping behind you. After this, the engine light turns on and flashes from time to time.
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Sounds like possibly a coil starting to break down and fail. If the check engine light is on it would be fairly easy to retrieve trouble codes which could help identify the cylinder or cylinders that are. It working.
coolant temp sensor tells the computer how hot or cold the engine is so it can regulate the idle and fuel mixture, when it fails there usually is no cooling fan and you will have trouble starting the engine and keeping it running.
looks like not enough fuel pressure, check the fuel filter. and the fuel pump pressure.with car running 60 psi the pump is located at the rear seat driver side you have to remove the carpet to access the cover. if the fuel pressure checked "OK" suspect defective maf sensor (sometimes defective maf sensor do not show errors codes)another way to test is disconecting the maf sensor and start the car (computer goes to limp in mode) and works little better,or check by scanner idle= low grams per seconds and increase when accelerate.
Hello there, As far as the check engine light I would think since you mentioned it shacking that your light will probably be on for a misfire, Meaning most likely you have a spark plug wire going bad. I would stop by somewhere such as Autozone for a free check to tell you why your light is on just to double check.
Your fan issue could be several different things such as the fan motor going bad or the blades could be rubbing something, that one is a little tricky without hearing it.
Good Luck and I hope this does help you some. Allen
i just fixed a similar problem on my van there is a rubber elbow on the end of the pvc hose that connects to the valve cover you can only buy the elbow with the hose and it costs about 100 bucks but i guess they have had to replace a lot of these because the new one looks twice has strong you just have to check and see if its collapsed in on itself preventing air movement or leaking the shop will charge you 175 dollars to fix it plus the part but it only takes 20 minutes good luck
we had a very similar problem on our 2003 mazda mpv. at first we were also told coils. we changed all the coils out and the problem came back. we found out that it was a leak in the egr valve and gasket. there was also another leak found after that. when the leaks were fixed, the problem stopped. i suggest checking for leaks in your engine, this could be the problem.