What was the problem with my 2001 Yukon XL Denali?

I love my 2001 Yukon xl Denali with over 130,000 miles but having some starting problems. The initial problem was taking several tries to start, when after it seemed a clog was cleared and the engine banged loudly once it would clear and start and be ok for the rest of the day, but a little more difficult in colder weather.

What did my 02 Yukon XL die of?

Last summer my 02 yukon XL died while my wife was driving, she said it would lose power, and die, it restarted a couple of time, drive for a few miles, the same thing. we replaced the fuel filter, and got it home, test fuel pressure, all seemed okay.

What happens when the idle control valve fails?

When the idle control valve fails it can cause all sorts of issues with the vehicle, and in some cases may even render it undrivable. Usually a bad or failing idle control valve will produce a few symptoms that can alert the driver of a potential issue. 1. Irregular idle speed

Can a bad throttle position sensor cause idle surging?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light

What causes fuel injection pump to back up?

The spray tip (where the fuel leaves the injector and enters the combustion chamber) is particularly prone to “backing up,” so to speak. If your engine has ever sputtered or hesitated during acceleration, a clogged fuel spray tip might be the glitch. And it all starts with subpar diesel fuel.

What did the shop do to my Denali?

OK….I took the Denali to the shop and they fixed it. It actually stalled once on the way there and tried twice at stop signs. It turned out to be ‘the throttle body was sticking’. They cleaned it and $150.00 later, It is working again. Thanks again fro your help and maybe this info will help someone else.

Why does my GMC Denali run rough in the morning?

I have a 2001 gmc denali that runs rough in the morning – usually after it rains or sits (with humid weather). SES light blinks and code indicates all cylinders missing. Problem goes away after running 10-15 minutes (engine heats up). Dealer can’t figure it out – recent wires and plugs done.

Why does my Yukon not start on the first try?

About a week ago my Yukon started to have a starting issue. It will not always start on the first try but always starts on the second. There are a few things that I found while trying to diagnose this problem. It dosen’t matter if the engine is hot or cold and it only happens about 50% of the time.

Why does my GMC Yukon come out of first gear?

At 2,430 miles, while in the Sierras outside Yosemite at 2500 feet, the transmission heated up to almost 200 degrees (outside temp only 78), and it came out of gear again. This time it would not shift out of first gear until we let it sit overnight. Drove it back to the dealer. Now they are talking about putting in a new transmission.

When did the GMC Yukon XL transmission fail?

The dealer was replacing the Chevy transmission at 15,000 miles after the transmission failed, would not come out of third, and heated up so bad the transmission was toasted. The other Yukon owner had a complete transmission failure while on vacation and the vehicle was not drivable.

When to know if your fuel pump is failing?

Another reason fuel pumps fail is regularly keeping less than 1/4 of a tank of fuel in your car. If your vehicle is displaying any of the symptoms above, or you suspect your fuel pump may be having an issue, have the vehicle inspected by a professional technician to determine if the pump should be replaced.

When does an idle air control valve malfunction?

As soon as you start your car, the idle air control valve will immediately malfunction. If you happen to be away from home and this happens, the stalling will happen every couple of minutes in the beginning. You should be able to make it to the nearest mechanic in time before the engine stalls completely.

Why does my vortex motor not work at idle?

Your idle problem could be a clog throttle body and /or IAC (Idle Air Control)valve. If you have a Vortex motor (V-8), this might likely be the problem especially if you have not had your IAC changed out or your throttle body cleaned. Let me know if this works for you.

Do you have to put gas in the throttle body?

My 97 s10 will run great but you have to put gas in the throttle body for it to start.It will turn over but needs the direct contact of gas. There is also this ticking noise that is only heard when you role the key over.

What happens when my throttle position sensor goes bad?

What happens when my throttle position sensor goes bad When a TPS goes bad, then the car’s throttle body won’t function properly. It could either stay shut or it won’t close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won’t start.

Why does my Chevy Malibu start then stall?

This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine.

What causes an engine to surge at idle?

A surge is usually caused by a fuel system management or drivetrain operation failure. When an engine’s computer can “hunt” or “surge” at cruising or idle speeds it is searching for program compliance, there is a problem elsewhere in the system. SPONSORED LINKS. Article published 2017-01-26.

What to do if your crankshaft sensor is not working?

Issues with the crankshaft sensor can quickly lead to problems that affect the drivability of the vehicle. For this reason, if you suspect your crankshaft position sensor has an issue, have the vehicle inspected by a professional technician right away. They will be able to diagnose your car and replace your crankshaft position sensor if necessary.

What causes a car to start but not keep running?

The engine requires the right amount of air and fuel to mix together for ignition. If there is a fuel leak somewhere, then the correct amount of fuel may not make it to the combustion chamber. This might be enough to allow the engine to start, but not keep running.

Why does my GMC Yukon engine not start?

GMC Yukon: Engine Cranks → Won’t Start There are a lot of issues that can cause your Yukon to crank, but not start. The engine needs air, fuel, and a spark in order to run. It is highly likely that if the engine is cranking, but not starting that it has thrown an OBDII code.

Are there any problems with the GMC Yukon?

GMC Yukon owners have reported 15 problems related to car will not start (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Yukon based on all problems reported for the Yukon.

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

What’s the difference between no start and no crank?

It’s important to know that a no crank and a no start condition are not the same thing since this article only concentrates on testing a no start condition. In layman’s terms, a No Start Condition means that your vehicle’s starter motor is cranking the engine but the engine is not starting.

Why does my GM Truck shut down while driving?

At a dead stop. It would crank over, but not start. Ran the battery dead trying to crank it. My dad came to help, charged the battery, and it started right up. It sounds wierd but this is what its doing.

What causes an engine to shut off while driving?

Had a similar situation (just shut off while driving) on mine that turned out to be a broken wire to the crankshaft position sensor (CKP). Diagnosis started by pulling codes and finding a CKP code, so I would almost certainly start by pulling codes.

What causes an engine to stall at idle?

If the ISC valve is gummed up with fuel varnish or dirt, it may stick, preventing the engine from maintaining the proper idle speed when the throttle closes. A faulty idle speed control circuit may also allow the engine to stall when idling if it fails to compensate for idle loads placed on the engine by the charging system or A/C compressor.

Why is idle speed not coming back up?

If the ISC system is working correctly, the PCM should adjust idle speed to keep the engine from lugging down when the A/C compressor engages. If idle speed drops down and does not come back up, the ISC system is not responding the way it should.

What to do when your GMC Truck won’t start?

Try turning your key to the run position a few times (with out starting). Then try to start it. If it starts, sounds like what mine did. I replaced the fuel pump assembly and that fixed the problems. Very common problem.

How often does my GMC Truck turn over?

So far this has been the case pretty much every time i am starting the truck cold. I’ll try to start it and it will turn over for about 3-4 seconds (have tried a bit longer, still no go) then i’ll stop and try to start it again, and the second time it fires right up.

What to do if your GMC Yukon Denali won’t start?

48 people found this helpful. I have a 2000 Gmc Yukon denali, 5.7 litter, it cranks but won’t start it does have spark in coil, but No spark in #1 sparplug I put new distributor and new coil new sparplugs, new plug wires,checked out fuses there all good]

What to do if your GMC Sierra won’t start?

Let sit for awhile, turn key, won’t start, turn key off, turn key again, starts up and runs great. A week later, same issue. I went to work everything great, went to go home, wouldn’t start. Tried to turn key a few times, won’t start, let sit about 15 min., turned key, started up. Stop to get gas 15 min. later, wouldn’t start. Stranded for 2 hours.

Why are the lights on my dash not working?

Flip the switch or turn the dial or knob up and see if the lights on your dash come on or get brighter. If adjusting the switch doesn’t work, you may have a blown fuse or bad lightbulb. Or, the entire switch may be faulty, in which case, have it replaced by a certified mechanic.

What should I do if my fuel pressure is too high?

The pressure isn’t gone yet… now you have to pull the fuel pump relay out engine compartments fuse box. And then start the vehicle until it dies. If it doesn’t quit, you pulled the wrong relay, consult the manual. If you do not do this step, gasoline under 40+ lbs of pressure will spray in your face and on the engine. 4.

Where do I change the fuel pressure regulator?

To do that you need to run the vehicle for about a minute and then turn it off and remove the vacuum line from the regulator -If fuel leaks out, it needs to be replaced. It’s about the size of a walnut and is located on the drivers side fuel rail for the 5.3 liter v8. Here are the steps to replace it yourself. 1.

Why does my Silverado Sierra jerk at high speeds?

If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.

What causes a bad acceleration on a Silverado Sierra?

That means, the bad converter is a symptom of some other problem, such as a misfire condition that has allowed raw fuel to enter the exhaust and overheat the converter, causing it to fail. I would suggest further diagnosis before replacing the converter, or you could burn up the new converter.

Are there any problems with my GMC Yukon?

See all problems of the 2017 GMC Yukon . Brake lights work intermittently. Very dangerous! passenger side brake light, stopped working completely, then came back on. The contact owns a 2015 GMC Yukon. The contact stated that while operating the vehicle, it was discovered that the rear brake lights were inoperable.

What’s the problem with the brake lights on a Yukon?

Brake Light problem of the 2016 GMC Yukon 12 Failure Date: 09/24/2020 The rear tail lamps sporadically would light up with driving lights for awhile, but could never get failure to show up for dealer diagnosis.

What are symptoms of bad crankshaft position sensor?

Problems with the crankshaft position sensor will often present as problems with engine timing. If you think your sensor has failed, here are some common symptoms of a bad crankshaft sensor that can help you in determining whether or not it has failed. As the engine speeds up, there needs to be adjustments to spark timing and fuel injection.

Why does my Silverado Sierra have high idle?

Cleaned the throttle body and went to put it back on and start it with out the intake attached to the throttle body. It idled funny so I shut it off.

What causes engine to stall at high idle?

The first issue is the high idle. The question is was that caused by a mechanical issue or an electronic issue. The 3 codes come from a higher idle condition that isn’t controlled. If the TPS sensor sees closed throttle, but a high idle with matching MAF/Map signals, it flags the codes.

How does idle speed work on a GMC Truck?

Scan it for codes. The control module controls idle speed with an idle air control (IAC) valve. The desired RPM is based on sensor inputs and the actual engine RPM. Four circuits are used in order to control the IAC valve, allowing a precise amount of air into the intake manifold.

What’s the idle RPM on my Chevy Suburban?

My 1997 Chevy Suburban (5.7) is acting up on me. When I start it up the RPM and idle seem fine. As I let it sit for a couple of seconds the RPM’s slowly begin to drop until they finally bottom out at about 1K. As soon as I put it into Reverse/Drive etc. the RPM’s drop below that mark and it struggles to stay running.

What does it mean when your engine idle does not increase?

Use the command in the scan tool to increase the engine’s idle. If the engine idle does not increase, it means there is an issue at the idle control motor of its circuit preventing the signal from changing the idle. You can purchase a bidirectional scan tool at your local auto parts store.

Are there any recalls on GMC Yukon Denali?

The 2006 GMC or Cadillac Yukon Denali has a recall, technical service bulletins (TSB) and safety reports about the stability control on the SUV. Read more: Problems With the Traction Control on a 2006 Yukon | eHow.com http://www.ehow.com/list_7635921_problem… http://www.ehow.com/list_7635921_problem… Was this answer helpful?

When did the GMC Tahoe traction control system come out?

Other than the Tahoe Limited Edition, the vehicle was redesigned for the 2000 model year on the new GMT800 platform, still shared with the full-sized pickups and SUV’s. What would cause the traction control to kick in when there isn’t any wet or icy conditions?

Why does my GMC engine start but not run?

Repair guides and support for cars, trucks, and SUVs manufactured by GMC. Answered! View the answer I have this problem too Is this a good question? An engine will start but not run when the fuel runs out .

What to do if your truck wont start?

To avoid throwing guesses and parts at your truck, have the truck scanned for trouble codes as a first step. Some of the auto parts suppliers offer free code reading like Pepboys, Nappa, Advanced auto parts,etc and some of the guys are very knowledgeable and may have seen the issue often and put you on the right track.

What happens when you reduce engine power on a GMC Yukon?

When the engine power has been reduced, the engine and transmission can operate in totally different ways. This leads to jerky shifts, unstable acceleration, and horrible gas mileage. Good luck diagnosing your Yukon’s reduced engine power light. If there is anything that you would like to add, please feel free to leave a comment below.

Why does the Check Engine light come on on my Yukon?

Oxygen sensors can change the way that your Yukon’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.

What happens when the oxygen sensor goes bad in a GMC Yukon?

When an O2 (oxygen) sensor go bad, it’ll cause your GMC Yukon ‘s engine to run less efficiently. Your Yukon can exhibit symptoms when the Oxygen sensor has gone bad. Or, it may exhibit none at all. Often enough, the only sign of the problem at all is the service engine soon light being on.

What’s the trouble code on my GMC Yukon?

Something is causing cylinders to misfire at random, which is a lot less cut and dry than a cylinder specific misfire code. The P0300 GMC trouble code will trigger the Yukon’s service engine soon light.

Can a vacuum leak cause a Yukon to misfire?

Vacuum leak – If your Yukon has a vacuum leak, it can be very difficult for it to get the right air/fuel mixture. This will cause the cylinders to misfire and it’ll throw the P0300. Also, since a vacuum leak almost always affects each cylinder the same, you’ll typically get P0300 with it and not any cylinder specific misfire codes.

What does the GMC Yukon P0300 misfire code mean?

GMC Yukon P0300 Definition P0300 is a general and random misfire code, which means that the code is not going to tell you which cylinder is causing the misfire. Something is causing cylinders to misfire at random, which is a lot less cut and dry than a cylinder specific misfire code. See Also: P0300 GMC OBDII Code

What kind of problems can a GMC Yukon have?

For example, rear air struts are the most likely to fail in the GMC Yukon. Just one rear air strut costs almost $400. And once one of them fails, the others are right behind it. Other components, such as the ride height sensors, are also prone to wearing out and needing replacement as well.

How to change suspension on GMC Yukon air?

This GMC Yukon air to non-air suspension conversion kit is one of our most popular items. Join the many who have already made the switch! Order online or better yet, call one of our Suspension Experts at (866) 669-9456. They’ll help you make sure you get exactly what you need for your GMC Yukon.

What to do if your GMC Yukon bounces?

Walk around to each corner of the vehicle and push down. If the corner springs back up and settles immediately, that wheel is fine. If it bounces up and down or takes a long time to come back up, you probably have suspension failure at that wheel.

Is there a lifetime guarantee for GMC Yukon Suspension?

Best of all, Strutmasters is so confident in the quality of this Made-in-the-USA suspension replacement kit, each kit comes with a Limited Lifetime Guarantee. That means that in most circumstances, as long as you’re still driving your GMC Yukon, your struts are guaranteed to work or we’ll replace them. Why wait?

When did my GMC Yukon Car not start?

November 13, I went out to start my 2008 Yukon and the lights, door locks, and cd player began to flicker and then shut off. The gauges also began to flicker erratically, then the car would not start.

What does it mean when your Yukon won’t start?

This just means that the engine doesn’t move when you turn the key. The second way that your Yukon won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own. When the engine isn’t turning over at all, that’s a bit easier to diagnose than when it is cranking but not firing.

When did the GMC Yukon Denali battery go dead?

We purchased this 2010 Yukon used in March 2011 with about 18K miles. This summer the battery went dead while the back was open while loading the vehicle after a camping trip. I have since shut off the dome lights when loading/unloading to eliminate the issue.

What’s the problem with my GMC Yukon Denali XL?

Have a 2009 Denali XL with many of the same issues identified here EXCEPT doors locking and unlocking and the rear window thing. Been fighting the gremlins for almost 3 years. Originally I though I had it narrowed down to a broken battery post in the battery when I seemed to be able to wiggle the posts and got everything to work.

Are there any electrical problems with my GMC Yukon?

Battery goes dead after door is open for a short period of time or a dome light is on for a short period of time. Had battery, alternator and starter tested – all fine. Was loyal Toyota guy but needed a bigger vehicle and no model from Toyota fits the bill. Starting to regret going with GMC

What to do if your Yukon Denali stops running?

I have a 1999 Yukon Denali, stopped running going down the road, acted like it ran out of gas. Added gas, didn’t help. Changed the Crank Position Sensor, didn’t help. Changed the Spark Plugs, didn’t help. No spark at the plugs, no spark out of the coil, changed the coil, didn’t help.

Are there any locks on GMC Denali AWD?

Only 1 gear, no locks. Also, since the torque is split between front & rear axle at all times, less wear on the rear axle. My transfer case at 164000 miles is doing good. Yes, the chain is probably stretched a bit, but not critical.

Is the 6.0 GMC Denali AWD the same as the Escalade?

AWD in 6.0 Denali is actually the same as in Escalade. It’s the simplest and, respectively, the most reliable set up. Only 1 gear, no locks. Also, since the torque is split between front & rear axle at all times, less wear on the rear axle.

What kind of problem does my GMC Yukon have?

I’ve got a 1997 GMC Yukon (bought in 2001). Anyways, it’s always had this problem: the fan starts blowing, I can feel the faintest leak of hot or cold air out of the vents, but no air comes out of the vents. This is an intermittent problem.

Why is my Yukon XL not getting cold?

The A/C in my 2004 Yukon XL wasn’t getting cold any more. I figured it was a basic freon leak. Dealer said the control module needed to be re-programmed. Charged me 2.5 hours labor at 95 $/hr. They could not explain what went wrong or why it needed to be reprogrammed, they just said that is what needed to be done. Did I get duped? Ouch.

Is the 2001 GMC Yukon XL car tested?

The 2001 GMC Yukon XL has not been tested. Like what you see? Find the best deal on a GMC Yukon XL today. There are for sale near you. Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats.

What’s the difference between GMC Yukon and XL?

GMC redesigned its biggest SUV last year and dropped the Suburban name in favor of Yukon XL to denote its similarity to the Yukon. Both are based on General Motors full-size pickup trucks, but the XL is 20 inches longer.

Which is bigger GMC Yukon or Ford Excursion?

Exterior With an overall length of 219 inches, the Yukon XL is 7 inches shorter than the Ford Excursion, now the biggest SUV. The XL has four side doors and a choice of an aluminum liftgate or dual swing-out cargo doors.

What was the problem with my 2001 Yukon XL Denali?