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re: F150 Problem, Help please

Posted on 3/31/19 at 6:05 pm to
Posted by mydadwillSueU
Baton Rouge
Member since Mar 2017
306 posts
Posted on 3/31/19 at 6:05 pm to
Just ran a test on it. Not throwing any codes.
Let it run until the sound started and popped hood, while running. Fan is running very hard and loud, I believe that is the issue. Turned A/C off and fan shut off about 3 minutes later. Turned A/C back on and drove some, fan acted normal. My A/C and heater are working fine. Truck not overheating, running well. May be a sensor or low coolant??
Posted by Open Dore Policy
The Commodore State
Member since Oct 2012
5451 posts
Posted on 3/31/19 at 6:34 pm to
I'm sure it has all the bells and whistles of most modern vehicles, but with the reliability of a domestic vehicle.

That's the problem.
Posted by Eli Goldfinger
Member since Sep 2016
32785 posts
Posted on 3/31/19 at 6:38 pm to
I’ve never heard of a fan running so hard that it makes the truck shake enough to make the driver think there’s a problem.
Posted by Eli Goldfinger
Member since Sep 2016
32785 posts
Posted on 3/31/19 at 6:39 pm to
American pickups - all brands - have above avg reliability and longevity.
Posted by Open Dore Policy
The Commodore State
Member since Oct 2012
5451 posts
Posted on 3/31/19 at 6:43 pm to
quote:

American pickups - all brands - have above avg reliability and longevity.


Lower than nearly all foreign trucks (save Nissan).

Domestic trucks are more reliable than domestic cars, but that's not saying much.
Posted by Stingy
TN
Member since Mar 2014
1907 posts
Posted on 3/31/19 at 6:55 pm to
quote:



If it’s vibrating while sitting still - and no engine lights are on - it may well be an engine mount. 

If a light comes on, I’m betting it’s a bad coil pack.




Bad coil pack spent wont make it vibrate while sitting still in my experience. Likely the engine mount.
Posted by mydadwillSueU
Baton Rouge
Member since Mar 2017
306 posts
Posted on 3/31/19 at 7:13 pm to
It 100% has something to do with the A/C. When it starts “vibrating” while driving if you turn the AC off it stops vibrating. Idk what it could be
Posted by Eli Goldfinger
Member since Sep 2016
32785 posts
Posted on 3/31/19 at 7:13 pm to
quote:

Domestic trucks are more reliable than domestic cars, but that's not saying much.


I currently drive a ‘19 Tacoma 4x4, so I obviously like foreign.

However, I also own an ‘89 Silverado 4x4 that I would drive anywhere, I’ve owned 3 F150s that were great trucks, I owned a 89 Nissan hardbody that I put nearly 300k on, and I even owned a ‘04 Ram that was very reliable.

No company makes a pos truck.
Posted by geauxtigers810
baton rouge
Member since Jun 2004
588 posts
Posted on 3/31/19 at 7:22 pm to
Water pump
Posted by weadjust
Member since Aug 2012
15814 posts
Posted on 3/31/19 at 7:24 pm to
How many miles on it?
Posted by deltaland
Member since Mar 2011
103799 posts
Posted on 3/31/19 at 7:27 pm to
quote:

Started my truck up last night and the entire thing started vibrating/shaking.



quote:

Coming from engine I think.


Way to go out on a limb there
Posted by Perrydawg
Middle Ga Area
Member since Jan 2014
5159 posts
Posted on 3/31/19 at 8:00 pm to
ac compressor clutch could be locking up
This post was edited on 3/31/19 at 8:03 pm
Posted by arcalades
USA
Member since Feb 2014
19276 posts
Posted on 3/31/19 at 8:43 pm to
GMCs are garbage. I own one.
Posted by mydadwillSueU
Baton Rouge
Member since Mar 2017
306 posts
Posted on 3/31/19 at 9:16 pm to
130k
Posted by Catahoula20LSU
Louisiana
Member since Oct 2011
3032 posts
Posted on 3/31/19 at 10:17 pm to
Probably bad plugs or coil packs
Posted by weadjust
Member since Aug 2012
15814 posts
Posted on 3/31/19 at 10:20 pm to
quote:

130k


Miles when the spark plug were replaced if ever?
Posted by Unobtanium
Baton Rouge
Member since Nov 2009
1934 posts
Posted on 3/31/19 at 10:24 pm to
Not sure if it relates to your trouble, but give it a look: Youtube
Posted by mydadwillSueU
Baton Rouge
Member since Mar 2017
306 posts
Posted on 3/31/19 at 10:43 pm to
Just thought about checking the coolant. Its extremely low. That may be my problem and causing the fan to go into high mode
Posted by LSUJay13
South Louisiana
Member since May 2008
543 posts
Posted on 3/31/19 at 10:52 pm to
This is what I was going to say...
quote:

Sometimes if they actually check the air filter, they will pull a vacuum line


Probably a vacuum leak...
Posted by GeauxGutsy
Member since Jul 2017
5993 posts
Posted on 3/31/19 at 10:54 pm to
Check Fords website for any TSB’s.
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