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Old October 14th, 2009, 10:57 PM   #1
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Default Creaking or pops while accelerating

I have a 94 F150 and just had the oil pan replaced. After I got it back I noticed that when I accelerate, there is a creaking/ 3-4 pops while increasing in pitch as the truck accelerates through the very beginning of first gear. Sometimes there is a creaking right before shifting into second. Once it hits second, there may be very little noise if any. And so on is fine. If I accelerate harder/faster, the noise is louder. Sometimes when accelerating and turning at the same time its easily noticeable as well. If I brake torque it a little, it will make the 3 pops. If I try to do it again in the same spot, it will not make the sound. If I roll the truck foward a foot and brake torque it a little again it will then make the sound again. Please let me know what you think.
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Old October 15th, 2009, 06:02 AM   #2
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make sure all bolts are tight, especially the motor mounts
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Old October 15th, 2009, 10:04 AM   #3
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Do you feel anything in the floor/trans tunnel/firewall/pedal assembly/ when the noise occurs?
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Old October 15th, 2009, 10:22 AM   #4
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kinda sounds like it could be a bad U joint. will it make the same noise if you go in reverse from a stop or does it clunk at all when shifting from drive to reverse?
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Old October 15th, 2009, 01:05 PM   #5
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Quote:
Originally Posted by 7.3X View Post
Do you feel anything in the floor/trans tunnel/firewall/pedal assembly/ when the noise occurs?
I can slightly feel it in the floor boards. If I listen while hunched down by the front tire, and someone brake torques it to make the sound( 3 consistent pops), it sounds like its coming from the front half of the vehicle, maybe even around the front axle area. Could not put a direct spot on it.
The tires were about 22 psi and I put them at 45, max is 50. The sound has decreased by a pop or two I noticed. I have not driven it much but I will listen again to see if it is consistently quieter. It seemed a good deal quieter.

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kinda sounds like it could be a bad U joint. will it make the same noise if you go in reverse from a stop or does it clunk at all when shifting from drive to reverse?
Not when shifting at all, and I believe no noise in reverse at all but will double check.

Keep em coming guys


Thanks guys
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Old October 15th, 2009, 02:50 PM   #6
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Hot or cold does it matter and does it do it every time you go to accelerate, hard acceleration or light? Weight or no weight? Lastly can you at least isolate it to a specific corner or side. I have seen bad caliper brackets rattle and calipers that are sticking lightly grab and let go at slow speeds where it would be noticed. 4x4 or 4x2 and what do the front end bushings look like? Good luck, Ron

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Old October 15th, 2009, 03:13 PM   #7
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Hot or cold does it matter and does it do it every time you go to accelerate, hard acceleration or light? Weight or no weight? Lastly can you at least isolate it to a specific corner or side. I have seen bad caliper brackets rattle and calipers that are sticking lightly grab and let go at slow speeds where it would be noticed. 4x4 or 4x2 and what do the front end bushings look like? Good luck, Ron
Hot or cold doesnt matter. It does it everytime I accelerate hard, and most of the time when I accelerate VERY soft. No weight. I would have to say drivers side but easily heard from passenger seat through floor. 4x2 and 4x4 is when it does it. Bushings look decent.
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Old October 15th, 2009, 03:58 PM   #8
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Sounds stupid but check the ball joints. Just a shot.
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