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  #1  
Old 11-07-2013, 04:12 PM
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Exclamation HELP! Weird issue...

ok, heres the deal....
was driving the truck today and was in town driving so stop and go traffic. accelerated through a stop light and it felt sluggish, like there was slippage in the trans....I had to ease off the pedal as I was approaching some cars, then without warning, the truck made a loud CLUNK and I hit the pedal again to get moving and it drove fine. normal acceleration, felt trans converter lock. all was good, I thought. A little more than a quarter mile down the road, I had to get on the brakes and my pedal felt very squishy. like you lost the brake booster. I immediately pumped pedal and it was right there. no more need to pump pedal all the way home(over 4 miles)....then backing into driveway, it came to a stop suddenly, like I might have hit something. I mashed the pedal to keep going, and it didn't want to move well, put it in drive, moved up just fine, and then backed the rest of the way in. I was in my mother in laws driveway, so I don't know if uneven ground played a part, like I went into a low spot in the dirt driveway. I never got out to check cause it was pitch black.

what the heck does the clunk have to do with the brakes suddenly feeling soft? the power steering was fine, not hard to turn at all. so I don't think its the hydroboost.....im so confused. thought the trans maybe, but the temp never got over 120 coming home. air temp here was about 55. total of 9 miles driven.

thanks for your help, im hoping to drive to php's dyno day next weekend, so its got me worried....
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Old 11-07-2013, 06:22 PM
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Possibly a brake hanging up. Or one of the rubber soft lines are going bad. Did anythung smell hot when you got out of the truck?

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Old 11-07-2013, 06:23 PM
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Check operation of your parking brake also

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Old 11-07-2013, 06:39 PM
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Quote:
Originally Posted by Colin7.3 View Post
Possibly a brake hanging up. Or one of the rubber soft lines are going bad. Did anythung smell hot when you got out of the truck?

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Nothing smelled out if the ordinary..or looked that way under the hood. Im gonna drive it some more tomorrow and this weekend. Ill check the brakes. I have replaced every caliper but one...maybe its sticking.....

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Old 11-08-2013, 07:14 PM
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Does it have drums or disc in the back?

Do you use your parking brake any? Or recently?

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Old 11-09-2013, 05:44 AM
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Sounds like you have E-brake hardware issues. Or rear pads are low, slide pin in the rear got stuck.

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Old 11-09-2013, 01:44 PM
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I had a ranger with bad cables. Didn't let shoes return all the way. Made a real hard clunk when braking and brakes never felt right. While your down there check all rubber hoses in the brakes see if they are bulging

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Old 11-09-2013, 05:47 PM
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Quote:
Originally Posted by Colin7.3 View Post
Does it have drums or disc in the back?

Do you use your parking brake any? Or recently?

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disc in the rear. I had trouble when I bought the truck about 6 years ago with the rear brakes being shot. I replaced rotors and pads in the rear, plus re lubed the slide pins. One was so stuck I had to drill from the back side and tap it out with a hammer. I didn't replace the caliper cause they weren't in stock and I needed the truck that night.




Quote:
Originally Posted by hucorey View Post
Sounds like you have E-brake hardware issues. Or rear pads are low, slide pin in the rear got stuck.

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Quote:
Originally Posted by Colin7.3 View Post
I had a ranger with bad cables. Didn't let shoes return all the way. Made a real hard clunk when braking and brakes never felt right. While your down there check all rubber hoses in the brakes see if they are bulging

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Yeah, like I mentioned above. Could be exactly that. Ill check that. Thanks!

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Old 11-10-2013, 10:40 AM
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well, i found my issue. rear right caliper(one that I described giving me trouble above) is hanging. Ill replace it this week. thanks for all you guys help!!!
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Old 11-10-2013, 04:23 PM
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Originally Posted by HVAC SuperTech View Post
well, i found my issue. rear right caliper(one that I described giving me trouble above) is hanging. Ill replace it this week. thanks for all you guys help!!!
Hopefully that is your issue. But, it may be a symptom of a bad master cylinder. If you start going through calipers, your MC is probably not bleeding off pressure when u let off the pedal.

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