1998 Mazda B2500 truck makes a squeaking sound when accelerating, even in neutral

Linda777 · 12-18-2008, 08:45 AM

My boyfriend has a 1998 Mazda B2500 truck, it has a regular cab with a 4 cylinder engine. The past few weeks, we’ve noticed a squeaking sound when you press the gas pedal. As soon as the gas pedal is released the squeaking stops. Yesterday, he realized that it also squeaks when it's in neutral, when the gas pedal is pressed.

leolkfrm · 12-18-2008, 09:07 AM

welcome to the forum
did you try lubing the pedal?

Linda777 · 12-18-2008, 09:56 AM

I forgot to mention that it doesn't squeak untill the car is warmed up, after the car has been running about 15 minutes. The squeaking isn't from the gas pedal itself but thanks for your suggestion.

bradrhale · 12-18-2008, 10:00 AM

maybe a bearing thinking of giving up. might also check the belt for glazing.

Linda777 · 12-18-2008, 10:13 AM

Which belt and where would the belt be?

bradrhale · 12-18-2008, 10:19 AM

by that comment, maybe we need a little more information. about where does this squekiness coming from?? inside the cab or in the engine compartment?? if from the front of the car, i was referring to the belts on the engine. specifically the alternator pulley.

Linda777 · 12-18-2008, 12:51 PM

It's definately not in the cab, I think my boyfriend said he thought it was in the engine or drive shaft.

75K30 · 12-18-2008, 01:18 PM

Is this a manual transmission vehicle?
When was the clutch last changed?
The very first thing that came to mind was either an idler pulley, or the release (throughout) bearing in the transmission.
If the noise is heard while the vehicle is in neutral, and the vehicle is not in motion, then we can rule out the driveshaft.
Try to depress the clutch pedal to see if the noise goes away.
I am kind of leaning towards the release bearing. They typically start to squeek when they are getting tired.
Gonna have to poke around to see where this noise is coming from.
To verify an engine related squeek, you can spray a little stream of water from a squirt bottle on various parts to detect a failing part. The water will not damage or make things worse like oil will if you spray a belt, but it will make the component silent so you can isolate the problem.

see error · 12-18-2008, 07:40 PM

i agree with 75k30 through out bearing i would say its a stick because you said in neutral not park does it stop when the clutch is pushed in?

Linda777 · 12-19-2008, 12:36 PM

It a a manual transmission. The clutch has never been replaced and it has only 67,000 miles on it. He tested it and depressing the clutch does not make the squeak go away. He thinks it is coming from under the hood.

12-18-2008, 08:45 AM	#1
Linda777 Junior Member Join Date: Dec 2008 Posts: 5	1998 Mazda B2500 truck makes a squeaking sound when accelerating, even in neutral My boyfriend has a 1998 Mazda B2500 truck, it has a regular cab with a 4 cylinder engine. The past few weeks, we’ve noticed a squeaking sound when you press the gas pedal. As soon as the gas pedal is released the squeaking stops. Yesterday, he realized that it also squeaks when it's in neutral, when the gas pedal is pressed.

12-18-2008, 09:07 AM	#2
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,298	welcome to the forum did you try lubing the pedal? __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

12-18-2008, 07:40 PM	#9
see error Senior Member Join Date: Jul 2008 Location: tallahassee, fl Posts: 165	i agree with 75k30 through out bearing i would say its a stick because you said in neutral not park does it stop when the clutch is pushed in? __________________ 2004 gmc 1500 cc 4x4

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12-18-2008, 09:56 AM	#3
Linda777 Junior Member Join Date: Dec 2008 Posts: 5	I forgot to mention that it doesn't squeak untill the car is warmed up, after the car has been running about 15 minutes. The squeaking isn't from the gas pedal itself but thanks for your suggestion.

12-18-2008, 10:00 AM	#4
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,003	maybe a bearing thinking of giving up. might also check the belt for glazing.

12-18-2008, 10:13 AM	#5
Linda777 Junior Member Join Date: Dec 2008 Posts: 5	Which belt and where would the belt be?

12-18-2008, 10:19 AM	#6
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,003	by that comment, maybe we need a little more information. about where does this squekiness coming from?? inside the cab or in the engine compartment?? if from the front of the car, i was referring to the belts on the engine. specifically the alternator pulley.

12-18-2008, 12:51 PM	#7
Linda777 Junior Member Join Date: Dec 2008 Posts: 5	It's definately not in the cab, I think my boyfriend said he thought it was in the engine or drive shaft.

12-18-2008, 01:18 PM	#8
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	Is this a manual transmission vehicle? When was the clutch last changed? The very first thing that came to mind was either an idler pulley, or the release (throughout) bearing in the transmission. If the noise is heard while the vehicle is in neutral, and the vehicle is not in motion, then we can rule out the driveshaft. Try to depress the clutch pedal to see if the noise goes away. I am kind of leaning towards the release bearing. They typically start to squeek when they are getting tired. Gonna have to poke around to see where this noise is coming from. To verify an engine related squeek, you can spray a little stream of water from a squirt bottle on various parts to detect a failing part. The water will not damage or make things worse like oil will if you spray a belt, but it will make the component silent so you can isolate the problem.

12-19-2008, 12:36 PM	#10
Linda777 Junior Member Join Date: Dec 2008 Posts: 5	It a a manual transmission. The clutch has never been replaced and it has only 67,000 miles on it. He tested it and depressing the clutch does not make the squeak go away. He thinks it is coming from under the hood.