Questions tagged [sierra]

39 questions
10
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5 answers

Is an exhaust pipe broken at engine connection fixable by a DIYer?

I took my 1999 GMC Sierra 1500 w/5.3l to a transmission shop to have it replaced. The process requires disconnecting the exhaust pipes going into the engine to get access to the transmission. When the shop put it back, the driver's side pipe…
Stay-at-home-dad
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9
votes
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Torque convertor shudder?

I drive a 2011 GMC Sierra 2500HD ex-cab 2wheel drive with a 6.0 gas engine and a six speed 6L90 automatic transmission. I have started noticing what I believe is called "shudder" from my tranny under fairly heavy acceleration or going uphill. Its…
user13279
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5
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2 answers

Truck overheating; no coolant flow through radiator

I have a 95 GMC Sierra 5.7 it suddenly overheated one day and the upper radiator hose busted. So far I've changed upper and lower hoses thermostat and water pump and flushed radiator. All new parts put on yesterday Truck is still overheating and not…
Caleb Villar
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4
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1 answer

2015 GMC truck check engine light no longer on

Had my check engine light on. Put a code reader on it to see what it was. It went off on its own a few days later. Went to dealership and told them what the code reader said it was before it went off (P015B). The code has to do with the PCM and…
Deanna
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4
votes
1 answer

Truck won't budge in neutral. Could it be due to a cracked transmission bellhousing?

1997 GMC Sierra K1500 4x4 5.7L V8 Automatic Transmission (4l60e I believe) I pushed my truck up my driveway with another truck. My truck was very hard to move, even in neutral and with the parking brake disengaged. It felt like something was…
Fer
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4
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New LED 3rd brake light stops working

Swapped out LED taillights and third brake light on my '05 Sierra. Tail lights work fine but the third brake light will work when first plugged in but after a short while the cab lights don't work.
scott
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3
votes
1 answer

Positive cable smoking......

I have a question. My truck has the battery next to the frame. Positive is almost impossible to get to. There is a positive red box in the engine to connect the positive jumper cable to. I had a dead truck. I called AAA. The guy that came out used…
Wet Nises
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3
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2 answers

Z71 package details for old body style, late 1990s, GMC Sierra

For GMC Sierra pickup trucks back in the old-body style late 1990s (1996, 1997, 1998) (not the new-body-style and more recent from 1999 onwards), what features made up the Z71 package? I always thought the off road package entailed four wheel drive,…
Franky
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3
votes
1 answer

My Reverse Just Went Out/Everything Else Is Fine

I have a 2001 GMC 2500HD automatic 6.0 Vortec and the reverse just quit. All the other gears work fine. Where can I find a video that shows how to solve this?
sonier w.
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3
votes
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1987 GMC Sierra - Can't connect to OBD diagnostic connector

I own a 1987 GMC Sierra and it has an ECU, I took it to a workshop to see if I've any issues, when they tried to connect a diagnostic reader to the connector (underneath the steering wheel) they couldn't. So they told me to replace the connector as…
user15878
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different tire ratios

I have a 2006 GMC Sierra 1500 extended cab 4x2. I have 4 extremely worn tires. We are traveling from Texas panhandle to Carlsbad NM so I need to replace them. The problem is I can only afford used tires at the moment and only 2. I am having a…
2
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2 answers

2002 gmc sierra 2wd rpms rise when applying brakes

Truck is 2wd 5.3 v8 non flex fuel When driving anywhere from 60mph to 80mph rpms rise when I lightly tap or touch the brake pedal. I also get intermittent abs and brake warning lights when hitting bumps
Joe.
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1 answer

What is this under-seat part on a '99 GMC Sierra, and can it be repaired?

This part of the driver's side broke off so the left side of the seat collapses a few inches down on that side. It's part of the seat power height system so I'm guessing a 'seat-height adjuster'? It seems to ride inside the floor rails, so maybe…
Stay-at-home-dad
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2
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2000 Sierra 1500 4.8L Engine not revving properly for several minutes after start

For the past couple weeks I've been consistently having a weird issue with my 2000 Sierra 1500 4.8L when I first start it up. The engine will start and idle fine, but when I give it gas the engine doesn't always rev up. I can mash the throttle down…
Matt
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2
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2 answers

1995 gmc Sierra 1500

Since it snowed the water in my 95 gmc Sierra 1500 froze and cracked the block at the top and I went to fill the radiator up and everything just poured out on the side of the motor but you have to look under the truck to kind of see where the water…
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