chirping sound could be cam syncronizer
I have a 2002 Ford Ranger 3.0L v-6.I had the chirping noise.I thought it might be the pulleys so I replaced the idler pulley and the belt tensioner assembly.Still had the chirping.The noise sounded like it was coming from under the engine.I did some research on this site and saw several people had this problem.I think it was Toreador who said put some oil in the top inside the syncronizer and if it quits chirping your cam syncronizer is the problem.OH,you need a 5.5mm socket to get the sensor bolts loose.Just buy one,lol.The location of this sucker is at the very back of the block next to the firewall.You will probably need a small ladder to see it back there.I put some oil up there and the noise stopped.Putting the oil there only tells you that your syncronizer is about to fail.Do not keep driving after you find this out.Fix this asap.
I got several quotes from some shops but ended up going to a Ford dealer.I was surprised how many crooks were out there.Two of the Ford dealers I called appeared to be crooks.Not all of the dealers are though.I was quoted $250 labor at one Ford dealer and another Ford dealer would not give me a quote.Go figure.I knew exactly what I needed:replacement of cam syncronizer.The Ford dealer charged me about $333 for instlalling the sensor and cam syncronizer and these are Motorcraft parts.Others on here said only use the Motorcraft brand.I had a $207 quote from one shop for just installing the Motorcraft cam syncronizer.There is only one bolt holding the syncronizer to the engine block.The intake does not have to be removed.This is a very simple job for a tech.Anyway,this should take not take a long time as far as labor goes.
Oh,I forgot to say that I requested to keep the old syncronizer.I was expecting to really see some teeth gone.Nope.Nada.Sucker looked good and turned ok.This is very scary.I know there have got to be a lot of these 3.0L out there just waiting to seize up.Some people on here have said the bushings are about to go out when you hear the chirp.Others have said they had no chirp and the engine just seized up.
Last edited by barebull98; 08-11-2009 at 05:41 AM.