2006 ford explorer 4.0 v6 when vehicle is at stopping point and i accelerate to drive off engine makes a very loud noise and seems like it struggles to pick up speed coming out of 1st and 2nd with this loud noise coming from under the hood. it does not do this all the time (seems more of a occurrence in the afternoon than mornings)1 transmission pro told me nothing is wrong. am i crazy? help?
Does it sound like backfiring or knocking or squealing/screeching or what ?
SOURCE: 1999 Ford Windstar, idles rough, slow acceleration
sounds like a large vacuum hose was knocked off the engine when they pulled the trans out, have that checked.
SOURCE: 2004 Ford Taurus V6 noise underhood appears to be belt
Sounds like a bad idler pulley,or belt tensioner. Most likely not water pump since the check engine light is not on. Altho it couold be the water pump and for some reason (bad sensor, burnt out light) the check engine isnt coming on. Either way it would be best to have it looked at.
SOURCE: Strange loud buzzing noise on 1997 Ford Explorer XLT
Only thing that comes to mind with description is maybe heat shield on exhaust, getting loose. Wait until vehicle is cooled off and get under there & check any heat shields you see wrapped around or near exhaust, above it attached to floor of vehicle etc, and give them all a little shake or rap with rubber hammer or similar to see if any rattles are present.
SOURCE: Shifts hard and jerks under hard acceleration.
thottle positioning sensor? if trans has overdrive could be a lock up piece, dont remember name of it. there is a lucas oil product that might help. if it is the overdrive.
SOURCE: Loud rattling noise while accelerating
First thing i would try...... ISOHEET, Red bottle..... allows water to be mixed into the fuel and be burnt out of the tank.
get a good qaulity fuel injection cleaner, if you can locate the brand MALCO, i found it quite succesful..... and go with a full tank of premium fuel such as ammoco or shell......do not use yellow bottle of heet
Testimonial: "Might be water in the tank?"
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