Comments: 1-15, 16-30, 31-45, 46-60, 61-64
I had my 99 Denali since this spring and now I added like 5000 miles on it. So far I had minor electrical problems, such as the power lock system, some fuses, and power seats.
Taking it to its monthly mantenance I always find out new surprises about this poor assembled SUV. Don't take me wrong, It runs smoothly and plenty of power, but its wiring system is absolutely nasty. Many of these were re-called to factory due to some assembly issues such as water pump, transmission, and brakes. Oh..brakes. Besides its ridicolous rotors size for such heavy load, if I didn't know there was ABS I would not feel it. Every time I have to step on brakes for major stopping it feels like instead of brake pads, it has some butter patties. As a matter of fact I am going to replace the entire system very soon. Another bad side, (but we are talking about a 350 here) this big boy is thirsty like hell. 10-13 mpg, and a little better average on highway runs.
But, overall, I'd feel safer with this than with any other Japanese or Asian truck.
I am looking at buying a 99 Denali with 50,000 miles on it. It has the stock wheels and a new set of 24" wheels and tires on it. I can get it for $13,000. I think this sounds like a great deal. I know the vehicle runs great. Does this sound like a good deal?
We have a 1999 Yukon Denali and are having a problem with bogging down while leaving an intersection or pulling grades. One mechanic diagnosed the problem as the fuel injector and another contradicts the diagnosis and says the fuel pump needs to be replaced, although the first mechanic put a pressure gauge on it and said the pressure was fine, while the second said the pump had about 1/2 pressure. Could it be anything else other than these issues? We would hate to replace the EXPENSIVE fuel pump and not fix the problem.
I have a 99 Yukon Denli and it runs great. It has 140000 Mi and still running.
The 99 Yukon started to stall and won't start some times. I tested the fuel pump by putting a gas in the carb. It cost $380 for a fuel pump at auto zone with a life time guarantee. To put it in all you have to do is remove the gas tank. Four screws will do the trick and remove the old then put in the new. It only took an hour easy. And now it runs great. I love this truck.
I have a 1999 Denali with 139,025 miles that has given us good service, but it has electrical problems that started in July of this year. The radio, windshield wipers and power windows stop working intermittently. If anyone has the same problem with their Denali would you please tell us what was done to correct problem.
I have a 1999 denali. i love it to death. i would not drive anything else accept a newer one. mine is a rare green one. i bought it with 85.000 miles on it.now it has 107.000 miles. I have had a couple of problems. I found out how to fix them myself. my windsheild wipers would work most of the time... the relay switch overloads. it is a easy fix. it is a japanse part. also the reverse relay switch went bad. again a easy fix.. also a japanese part. the heated seats have a switch that also goes bad again easy fix... again a damn japanese part...humm.just so you know gm did start to use the better made a/c delco parts in 2000.i fixed the intake gasket leak with luquid barrs sealer. the trick is to put it in and "drive the truck for at least 25 miles or so this is very imporant" then drain the coolant and refill to oem specs. I do love my truck to death and would buy another...
And really, if something like the fuel pump goes out on these rigs, like mine, why spend an arm and a leg on getting it replaced at the dealer when you can spend less than half?
It also doesn't take as long because you don't have to wait for the dealership to get to your vehicle. like a previous commenter said, 4 screws and you're done.
I have a 1999 Denali, absolutely love it.
Recently the wipers randomly stopped working. Reading here it seems like a common problem, and I see one person mention a relay; if someone could let me know what relay it is and where it is, I would appreciate it very much.
B1gg13 at gmail dot com
I have had my 99 Yukon for 4 years and have also experienced some of the issue in this forum, luckily I bought an extended warranty and most were taken car of before it reached 100,000 miles. Here is a list.
Fuel Injectors- Poppets would get build up and truck would eventually stop running. Before the dealer figured out a way for the warranty to replace them, I had to have them cleaned once a year.
Heated seats.
Air Conditioning went out.
Rear Door handle.
Front Driver's door handle. Inside broke first, then outside broke a couple of years later.
Automatic Headlights stopped working- It was do to some onboard computer that controllers the electrical system.
Power Steering line went bad.
Alternator went bad.
Current problems are the windshield wipers intermittentlywork. I read on this forum that it is probably the relays.
Transmission is going out. Found a local place to rebuild it for $1200 out the door.
Rear main seal is leaking, when transmission is replaced this will be taked care of.
Truck has 130,000 miles currently.
I have a '99 Yukon Denali I was wondering if anyone knows where I can buy a Lift Kit for it? I tried looking everywhere, but they only make '00 and up.
My wiper issues weren't a relay they were the pulse board on the wiper motor. $20 part and about 5 minute fix. wipers work perfect again now. I am told this is the most common reason for intermittent wiper problems.
Napa Item#: RAY49700PB
Hope this helps someone.
I have a 1999 escalade, in the last six months I have had lots of problems. 135,000 miles on it. I replaced the fuel pump it went first. Then O2 sensors. I have electrical problems up the a**. The ecm fuse keeps blowing out in the main fuse box. The courtesy light fuse keeps blowing out too. It starts hard and stalls when at idle. I replaced cap, rotor, wires, plugs and tps sensor. It still reads a random/multiple misfire on obdII. I'm looking at the mass air flow sensor next.
I have a gold 1999 Yukon Denali, could be the only gold one that was made. when I bought it new the factory{Texas} called me a number of times wanting to know what I thought of it, I found out that the factory was celebrating their golden anniversary and the owner had turn 60 in 1999, name of the paint 60s gold, what do you think? I now have 95,000 miles on it and it has had no problems to speak of. No amount of money could buy it from me.
I too have a '99 denali, it had 71K when we bought it and now has 125K. All in not a bad SUV. This is mainly my wifes truck I drive only when the "family" goes out. We started having problems around the 105K mark. The fuel pressure regulator started leaking. From a cold start it would be fine and as it warmed up it would start to miss more and more. Had the regulator replaced, fixed problem. 115K would not start after setting over night, flooded. Had to remove all the plug and let it dry out then start. I had Spider Assm. (injectors) replace and the regulator again and haven’t had a problem with starting, I do have a bad miss at 70mph, but it not regular it comes and goes like a torque converter shutter, but that doesn’t seem to be the problem. We still drive it daily, but I will try to get this mechanical problem fix any help would be nice.
As far as electrical I have a list there too.
-Drive side door lock switch, keyless works
-Dome light work fine with rear doors, when it wants to with drive and passenger door.
-Radio No Sound
-Heated seat passenger side
-High on the blower will shut on sometimes.
One last thing I agree with the comments on the brakes, I feel like I need to open the door and put my feet out to help the thing stop, but I think that is because I don’t drive it enough and it just doesn’t stop like my SWB truck.
I have a '03 Denali, and I'm having problems with my driver side power seat. The seat will not move at all, and the heater switch on the door will not turn on. Any ideas of what the problem may be?