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Chevrolet Lumina

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#265 of 849 3400 DOHC V-6 Luminas by teo Jan 09, 2001 (9:55 am)
That engine is a failure because it was essentially a Pushrod powerplant converted 'on the fly' to a cammed engine, hence the problems most Lumina 3.4L DOHC have been putting up during all these years. This engine was never conceived as a cammed designed from the ground up.   GM finally discontinued this beast in the late 1990's and the Lumina was given (as it should have been a long time before) the powerful and bulletproof 3800 engine. When buying a used Lumina, make sure the car doesn't have the 3400 DOHC engine in it. The Lumina should be a reliable car with either pushrod V-6 on 3.1L and 3.8L displacements.   Also check out the 2000/01 Impala, a cut above the Lumina.   Note: the 3400 OHV V-6 found on the base Y2K Impala is in NO WAY RELATED to the infamous 3400 DOHC V-6 engine on earlier Luminas. The 3400 found on the Impala is a solid reliable engine (Altough the 3800 Series II is the best of the best)and it is used in many other GM vehicle applications:   * Pontiac Grand AM * Oldsmobile Alero * Chevrolet Impala (Base) * Chevy Venture and Pontiac Montana Minivans.   The 3400 DOHC V-6 is no longer in production. Beware of this engine!
#266 of 849 NASCAR by prestone Jan 10, 2001 (1:43 pm)
Hey there NASCAR, had a 1998 Lumina LTZ for a three year lease commencing in Aug of 1997. Over all, it was a great car. Mine had the 3.8 V6 and was loaded and was super reliable. Jump at the chance to get one if it's still available. The leather seat padding was a bit too thin for my liking however. But, that was basically the only problem.   Was looking to get a Impala LS, but it just didn't fit me to well. After driving Chevy's for the last 15 years, I ended up leasing a loaded 2000 Mercury Sable LS Premium with adjustable pedals. This car fits me perfectly. I hope other car manufactures start incorporating adjustable pedals. Again, if you can lay your hands on a 3.8 LTZ, do it. Good luck NASCAR!
#267 of 849 Lumina LTZ by Buck531 Jan 13, 2001 (2:17 pm)
I currently have a 98 LTZ with approx. 33k miles on it. I'm looking for performance parts for the car. Especially a new exaust and air intake systems (ram air or what not). I haven't found a place anywhere on the net that handles stock replacements for this car. I could get a universal muffler but I don't want to deal with trying to get it to fit. Has anyone out there found a web site for performance parts on Lumina's. I've been to the local parts stores and they laugh at me when I say I want a new exaust for it. Hell, it's pushing 200 Hp now.. why can't I upgrade to say... 230 or 240? It beats the crap out of a lot of cars out there on the road now. Thanks.   Buck
#268 of 849 Vent Problem by fathertyricius Jan 20, 2001 (7:52 am)
I own a 98 Lumina with 30000 miles. So far from the day I bought it, the car has been problem free. What's happening now is that if I turn the vent control to have the top vents work, the air comes from underneath the dash instead. Up to this point if I came off the accelerator the air would come from underneath the dash to the above front vents, but now it's constantly coming from underneath. Anyone experience this problem? If so what were the causes? Thanks.
#269 of 849 Vent problem #268 by nafrong00 Jan 20, 2001 (10:53 pm)
You have a classic case of a vacuum leak. The HVAC system runs off of engine vacuum. If there is a vacuum leak the vents will blow from the bottom or heater position. When you accelerate the vacuum builds up and the air is able to blow from the vent position. But your leak has grown and now the engine simply doesn't have enough vacuum left to control the HVAC system. I had the same problem. It cost very little..... like $80 to fix.
#270 of 849 Vent Problem by fathertyricius Jan 21, 2001 (9:28 am)
Thanks for your input nafrong00.. much appreciated. Im still covered under the warranty so it wont cost me anything but a little time at the Chevy dealer. Thanks again.
#271 of 849 To Buck 531. Noise from front of 99 Lumina LTZ by ssmart Jan 30, 2001 (6:32 pm)
Buck, I know your message was posted a while back considering today is Jan. 30, 2001. Just in case you haven't been to the dealer about that noise in the front end of your car especially first thing in the morning, mine was doing the exact same thing and your front struts need to be replaced. I just got mine Jan. 2001 with 25,000 miles on it.
#272 of 849 Oil leaking from top of 3.1 liter by ssmart Jan 30, 2001 (6:45 pm)
To netmaner,   My 90 Euro started leaking oil real bad and I thought I was from the main seal. Come to find out, the intake manifolds still have a hole in them where the distributor used to install. There is a cover with 1 bolt and an -ring. My mechanic called it the "oil pump seal". It was about $100 to diagnose and repair. He put a die in my oil to make sure he knew exactly were the leak was coming from. Hope this helps. I know your post was a long time ago.
#273 of 849 pcv by ssmart Jan 30, 2001 (7:05 pm)
To pipes3k,   Yes the pcv valve is a pain to get to on the 3.1. I never did replace mine because of the cost involved just to get to the bang thing. You cannot see it without disassembling the top of the engine according to my mechanic who was the shop foreman for years with a Chevy dealer.
#274 of 849 99 LTZ Buckets or Not? by ssmart Jan 30, 2001 (7:27 pm)
To: this_is_nascar, jpstax, and Edmund2001   I just purchased a 99 LTZ with 25K on it. It has bench seats in the front. It also has the LTZ emblem on the dash above the glove box and the LTZ embroidered in the middle of the rear seat and the LTZ emblem at the right rear of the trunk lid just below the spoiler. It also has the 3800 Series II, the 16" spoke rims, and the spoiler on the trunk lid. I also drove 3 LTZ's before I purchased this one (mine being one of the 3 I drove) and all had bench seats in the front as well as all the markings of an LTZ. I just now looked up the LTZ on Edmunds under used cars since it is no longer manufactured and the buckets are listed as an option. Check it for yourself. this_is_nascar, just because we didn't get buckets doesn't mean we didn't get an LTZ. After all, I didn't by it for the seats, I bought for that 3800 Series II horsepower! No offense, please. Have a nice day or night.

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