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V8-5.3L

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Was in a rear-end collision that affected my brakes. Mechanic says master cylinder is the issue. Could this be do to the wreck
To determine if crash forces led to master cylinder failure you would have to determine exactly "what" failed within the master cylinder. If the master cylinder bore is scored or worn, for example, thus causing significant output pressure loss, that...
Question
Dies sometimes while idling and belt broke started smoking and died
The serpentine belt can break simply because it has reached the end of its service life. Another cause of breakage is if one of the driven rotating elements seizes. That would cause the belt to suddenly stop on that element...
Question
2003 chevy tahoe oil leak
When determining where an oil leak is coming from, it is best to follow the oil up and towards the front of the vehicle. Gravity and inertia from the vehicle moving forward causes the oil to drop down and fall...
Question
Replaced front suspension got aligned new tires , steering shudders at low turning speed still chevy silverado 2004 1500
Hi Houston. Thanks for contacting us today. Sometimes when multiple components are replaced, and adjustments made, it will highlight other parts that were not replaced that might be loose or wearing out. Based on what you've indicated in your question,...
Question
What type and brand of oil should I use in my 2008Chevrolet suburban LTZ? Over 100k miles
The vehicle calls for synthetic oil that provides better protection and should be on your oil cap indicating the proper weights and the brand should not matter as long as it meets GM standards on the oil cap or in...
Question
The rpm in my truck is high while I'm in first gear then drops to normal once i accelerate
Hi Michael. Thanks for contacting us today. A high idle speed while not in gear is often caused by a faulty idle control valve or vacuum leak. It would probably be best to have a mechanic diagnose this issue correctly...
Question
False "open rear access door open" msg. And lights aren't coming on inside when rear door really does open? Can this be reset
Hi Jasmine. Thanks for contacting us today. In most cases, this error message is activated when there is a failure of the rear door sensor. Sometimes an exposed electrical wire that is connected to the sensor can cause this to...
Question
Why are all my lights flickering dashboard lights to
If the malfunctioning lights coincides with rough engine operation, there may be a global electrical problem. That might relate to charging system output or the integrity of main circuits. Some basic tests will have to be performed, along with using...
Question
code P0102, p0300, p1515 Chevy
If these codes, and the reduced power, occurred immediately after the throttle body service, the throttle position sensor outputs should be confirmed. You may see a yellow wire from the throttle body. That wire has been reported to often develop...
Question
Service stabitrak traction off check engine light flashing on an 07 avalanche changed plugs wires and throttle body tb sensor
The traction control malfunction may not be related to the engine malfunction(s). In any event, the engine issue should be resolved first, especially as you have misfiring which has the potential to cause follow-on damage to other vehicle components (catalytic...
Question
Check engine light is on. Codes go back to the purge valve. Which I've replaced 3 times in the last 5 months.
Hi Miguel. Thanks for sending your question to us today. In most cases, if the purge valve has been replaced and you're still getting codes related to this component, then it's going to be a fault caused by the sensor...
Question
Transmission gears
You may have a broken transfer case and should have the system tested and see if the problem is in transfer case or the transmission.
Question
04 Avalanche "Battery Not Charging" even after new battery, alternator, ecm, and clean cables.
Confirm that there are no parasitic loads while the car is both idle and running. The grounding of the alternator should be checked. If grounded through the block, make sure all engine to body grounds are adequate. The actual output...
Question
Driving in snow now my Chevy Tahoe won’t accelerate past 20 mph
If you are getting loss of power and have a warning light on your vehicle may be in failure mode and will need to have the systems scanned for failure codes like one of the wheel sensors or transmission transfer...
Question
What damage could uninstalling my ABS system do to my 2005 GMC Yukon XL 1500 RWD 5.3L flex fuel
Modifications to vehicle brakes is not something we can help you with due to safety reasons. I can tell you that if the ABS is not active or does not work then the brakes will revert to normal brakes as...
Question
My van is a custom conversion van, with LOW “Ground Effects” - what kind of jack will prevent damage.
Additional ground clearance, if required for any floor jacks, can be gained by driving the vehicle onto a very gradual ramp. Typically, ordinary 2 by 10's (ordinary framing lumber) is used for this purpose (designs vary, but it is easy...
Question
2010 Chevy Tahoe, no crank no start somedays. open/close fuse box crank up. driving stable track, and service traction control
There are a large number of Technical Service Bulletins (TSBs) published by GM relative to the Tahoe's electrical system. In fact, the number is the largest I can recall from recent checks of the variety of other models we deal...
Question
My Yukon 04 has been reading engine reduced power for about a month now. I put a brand new throttle body and throttle pedal positi
Hi Jay. Thanks for contacting us today. The problem with reduced engine power indication lights is that diagnosing the root issue can take a tremendous amount of trial and error or more importantly, detailed inspections to determine the source. The...
Question
New used transmission took off from red light and quit pulling
Hi Brian. Thanks for contacting us tonight. It really depends on a few important details that we don't have that might indicate the source of the clicking noise. The first question is whether or not the transmission swapped is an...
Question
Good Day , I have a 01 chevy silverado 5.3 V8 with about 200,000 miles on it. over the past few years I have put out about $10,000
Unfortunately this decision can be very difficult to make. With the amount of money that you already have invested into the truck it would be hard to let the truck go. However continuing to invest more money into a truck...

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