Ask Free Auto Mechanic Experts Car Questions

do i have to remove the intake manifold to replace the  bypass hose

i have no driveability. i have changed spark plugs and switched out my 1996 cougar mass air flow sensor to see if any change and there wasnt. i dropped exhaust to c if cats wereclogged no change in problem. i unplug the the mass air flow sensor and i have driveability ne bogging what can i do next im lost?????

Just got a 99 Merc. C-280 it came with no manual, changed the spark plugs, to give it a tune up, it is still sluggish, got it checked, coil pack #2 bad, if I am looking down at the engine where would coil pack #2 be located, also could it be possible that if the codes were not properly cleared out, can the computer cause the same problem, and or if  the CEU is bad can it effect one or more coil packs, or would a DIO identify that the computer is bad.

Thanks to all who can help with this….

Had my son’s car towed to the shop on Friday because it stalled on him twice. On his check up sheet in August 2010, the only thing needing attention was his serpentine belt; everything else was green.

After they checked the vehicle, they reported that the timing belt needed to be changed. Some other things they noted was the front brakes and the rotors needed to be changed, transmission flushed, new spark plugs. Is it possible for all this to go wrong in the space of two months?

1998 Mercury Tracer, 4 cylinder automatic

Hello all, I have a quick question. I have a 2002 Mercury mountaineer
and I was just told that the timing chain is causing my truck to make a rattling noise and that it needs to be replaced. I am currently in bewtween jobs and I was told that it can be pretty expensive to repair. Any ideas on what I should do? Does it take an experienced mechanic to make this kind of repair or is it something I could do myself? Is is even worth it? Thanks!

gas mileage has gone from high 20′s to 12-14 I nee help? also is it possible for o2 sensor to be culprit with out sending a code?

i have a 1991 mercury cougar runs ok until you pull a hill then it creeps along and jerks. what could it be?

Hi, my friend has a 1999 mercury Cougar that has 140,000 miles on it, first she does not have the money to take it to a mechanic, last month the trans start slipping and it just got worse and now the car drives but after u but the car in D (drive) or R it takes about 1 minute then some times moves drives and sometimes it does nothing means it does not drive at all, the trans OIL is clean and did not need to add, the trans makes a little random noes only when put it in D or R, any idea I know the trans might gone but I just wanna see if that happened to some one before? could it be clutch? might be sensor or some other part in the trans
it’s my friend’s car and she needs help.
any idea or advice might help. and if u really know about cars what is the part name that makes that trans slip or not act properly ??? THANKS

What is the name of the wire that connects the speedometer to the transmition

Help, I have a 2005 mercury monterey that had code p0401 on it. I cleaned the EGR valve with carb cleaner and reset code by disconnecting negative battery cable to battery.  I connected everything back up, code went away and now 2 weeks later I am getting horrible gas mileage.  Why? thanks.