2000 lin ls. they put 5w20 instead of 5w30. it is running raggedy. also had an engine flush. what is the prob?

Answer 1

Have it "stolen" for the insurance money and buy a new car. That is what I would do.

Answer 2

running raggedy how? Ford does recommend 5w30 for that particular year but the 5w20 ain't the problem... a engine flush (depending upon what you are calling a engine flush as most people are assuming it's a engine oil flush they did) can unblock stuff in the motor sometimes.. engine flushes are recommended only for those who believe in 15,000 mile oil changes (without the 15k mile motor oil)

Major problem with them is possibly something is unhooked from when they did the oil change and now is causing the problem (like a unhooked vacuum line) but these cars were also famous for motor oil getting into the spark plug hole causing a misfire..

Bring it back, let them check over their work (and a refill with 5w30 instead) and if they can't find anything, let a shop diagnose it properly (I recommend a Ford or Lincoln mercury dealer or a independent who specializing in check engine lights as these things are known for being expensive nightmares at times

Answer 3

If your vehicle is a old / high mileage one that has not had regular oil changes when they flushed the engine the carbon and gunk that was in there was actually helping keep the engines compressions and oil pressure up. You should never flush an old engine that has done more than 80000 miles as it will cause more problems that it will cure. Also if your engine has hydraulic lifters it will cause all kinds of problems there. As for the oil being a 5w20 not a 5w40 this will not make a great difference as long as the vehicle is not being used in a hot climate.

Answer 4

first of all why did you get it flushed not a good idea. And as far as why it is running raggedy defenitly not the 5w20 causing that. Probably shouldnt have had it flushed but since they or someone thought you should makes me wonder if you are taking care of the engine and changing the oil every 3000-5000 miles. If so then you should not have a dirty engine for someone to recommend a flush.

Answer 5

if you are changing your oil at least every 7500 miles you have no need for a flush. flushes are just another way for the shop to pad their bottom line, and often don't even get performed. this idea is a leftover from the days of non-detergent motor oils when engines would in fact sludge up heavily. if you pull the valve covers off an engine with 100k miles on it that has had the oil changed every 5000 miles chances are you will see no sludge or deposits whatsoever

Answer 6

When you have oil as 5W-20 or 5W-30 the only difference is the grade weight, for instance its thicker or thinner. Normally you want a 5W-30 for the hot season, and 5W-20 for colder because its thicker, it really wont matter to much, but as i have seen in most car manuals and mechanic books that cars tend to use either 5w-30 or 5w-20. It tells you this even in your car's manual owner guide. Typically they want you to run 5w-30 because its a pretty much even balance for weather conditions that's why. But anyone in the summer using this and it was a mistake try to atleast within the first thousand miles to change it back to what your Car's manufacture recommends. Now lets say for instance your car was low on oil and you always put 5W-30 in your car but this time you were in a rush and you made the mistake by putting a quart or half a quart of 5W-20 in your oil! Don't worry your car will run fine, but lets just get a oil change as fast as you can. Remember if you use Conventional Oil Change it every 3,000 miles or every 3 months which ever comes first. If you use FULL Synthetic Oil you have about to 5,000 miles or 4 months which ever comes first to change it out! Don't wait to put these types of easy maintenance off. it will make your car run and last a lot longer.

Answer 7

It's not the oil. It's the flush. Engine flushes don't usually do much besides trash the engine. They dislodge a million chunks of sludge and plug up all kinds of passages.

Answer 8

Not sure about the bad running, but Ford recommends 5W20 in alot of vehicles. Not sure about the LS

Answer 9

They have hydraulic valve system , very important you have correct oil , could be the flushing oil is still trapped in valve system, or they put a to thick oil in your engine that would definitely make the engine run ragged

Answer 10

hey here is a crazy idea check to see if there is any oil in the engine. also check for puddles under the vehicle.

also check in the owners manual i think that some of the ls that a synthetic oil.

Answer 11

too thin oil. gunk now left engine after flush. I would change oil again & go back to 5w30 or get a good multigrade semi sythetic oil put in