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Suburban 1500

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Regarding electronic brake control module
Check the brake light bulbs, sockets and grounds first - they endure the most harsh conditions, and are easiest to check. Given the "intermittent" condition you mention, the brake light switch itself, and the brake light relay are next on...
Puff blue smoke on startup
Your engine does not have a PCV valve. The engine is equipped with crankcase vent tubes that do not need replaced or cleaned unless line is broken. You may have valve seals that are leaking oil into the exhaust valve...
Power steering.
Hey there, thank you for asking about your 2003 Chevrolet Suburban 1500. You may have a pump that has stuck vanes inside it. You can try and let it run a while until it gets the fluid hot and vanes...
wont click into gear
You should have the shift cable linkage at the transmission and at the steering column to see if the cable end bushing came off of the transmission shift linkage. Have the cable inspected and the end repaired by replacing bushing...
Problems with battery draining for no 'obvious' reasons.
Your problem could be a module staying on or a faulty relay. If you have an alarm installed, they can sometimes drain a battery when engaged. The parasitic drain you are experiencing can be diagnosed by a certified technician that...
brake are making a metal loud noise when I brake.
Hello. The price to replace all 4 rotors, calipers, and brake pads is very close to the price quoted when I used the estimating guide that I use for repairs. The calipers are listed at $246 each, rotors are about...
Ignition problem on 2004 Chevrolet Suburban
It sounds like you may have a failing relay or fuse block, either of which could stop certain components from being powered up, which may keep it from starting. It's also possible that even though the ignition switch and key...
Died,then wouldn't crank for a few min then cranked and drive but cut out once in the way back home.
This may sound like a dumb question, but when was the last time you put gas in it? It may be possible that the fuel gauge sending unit is failing and giving you a false reading. It is also possible...
Transfer case shift motor
Hello. C0327 is the trouble code for a malfunction with the transfer case encoder motor as you alluded. This is the electric motor that allows the transfer case to engage into 4wd mode. This code is commonly caused by water...
Reduced engine power
Code P0120 relates to the throttle position sensor and can be caused by the following: Sticking throttle return spring MAP or TPS connector corrosion Misrouted harness causing chafing Bad TPS Bad PCM Code P0220 relates to the...
My heat/ AC blower motor does not work, the blower is good, the resistor has been replaced, and the relay is good. What am I missing?
Hello. There is a service bulletin out relating to the blower motor of 2003 Suburbans: 11046. It pertains to the blower motor electrical issues Chevy experienced during that time. The electrical terminals were essentially melting. It is a fire hazard....
Low rpm & stalling
This is often times related to what is called an idle air control module which regulates the air flow at idle as the air enters the intake system and is mixed with fuel before being injected into the motor. When...
MAP Sensor - 2001 Chevrolet Suburban 1500
Hello and thanks for your question. Check the harness to the MAP (Manifold Absolute Pressure) sensor for voltage. There should be a 5 volt reference that supplies power to the sensor. If you do not have power to the MAP...
Changed camshaft position sensor, can still slows down when I'm driving when I don't intend to.
Hi, thanks for writing in. This may be related to a fuel delivery issue. As you may know, the camshaft position sensor monitors camshaft speed to control ignition timing and proper fuel delivery, however there are many other components that...
I took a engine out of a tahoe 1995 Ls and i got a vorteck engine can i put every thing on the tahoe engine
This is a diagnosis that requires a much more in-depth diagnosis as it is not possible to diagnose on a broad basis when dealing with a job of this size. I would recommend having an expert from YourMechanic come to...
Traction light/reduced engine power and check engine light coming on
Hello. From what you describe, it would appear that your vehicle may be experiencing some sort of intermittent wiring or sensor issue. If the problem occurred again after driving over a bump, then it may be possible that a damaged...
Service Engine Light is on.
Different than the Check Engine Light, the Service Engine Light is typically triggered when a predetermined service interval has been reached. There are dozens of service schedules that could be coming up including oil, transmission, battery, ignition system (spark plugs)...
Oil pressure gauge reading high
Your particular vehicle is known to have issues with the oil pressure sensor. Unfortunately the sensor is on the very back of the engine and tricky to reach. If you unplug the sensor and the gauge drops to zero it...
abs and brakes lights cane on
Hello. This may be related to faulty wheel speed sensors which are located at each of the four wheels. These sensors monitor wheel speed which is relayed to the ABS system. When the ABS system detects an abnormal speed for...
While driving car lost power then died and now won't start
There are several possible causes that keep a vehicle from starting. It would first be necessary to find out what the root problem is, meaning, for an engine to start and run, it needs fuel, air, and spark. To...

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