[doh]

The 3.4 litre OHV engine and the 3.4 DOHC engine that he is writing about are not the same, though they are both derivatives of the orginal 2.8 litre OHV. The 3.4 "Twin Dual Cam" DOHC V6 was not one of GM's better ideas, I owned one and put about 97,000 miles on one, but the engine is a pain in the arse, it is a OHV engine converted to DOHC for starters, it has belts instead of a chain, and they have to be changed every 60K like clockwork. Due to the design of the engine, the alternator sits on the bottom the engine, facing the firewall, yee-haw, and to top it all of, for all the 215hp that the engine claimed to have, it was not really that fast, it did rev all way up to 6700 rpm redline though under full throtle, which was kind of cool, but in hindsight, I should have bought something with either the OHV 3.1 or a 3800.

Very true about the alternator, a 6 hr job flat rate, I thought that was bad until I looked at spark plugs on a T-Bird SC, 6.1 hrs for the change of all 6 of them.

 

[MCGARRETT]

The "funniest" thing about the Twin Cam 3.4 V6 I can recall, was the sinister laughs that I would get from the parts dept guys at the Pontiac dealership where I worked whenever I would buy parts for it.


I would ask for a part

Then they would ask, "What motor?"

I'd reply, "For a 3.4 litre Twin Cam V6"

Then they would laugh and say "ohhhh, one of THOSE"


Not Good.

 

[turbotoad]

Nothing wrong with driving an import....

That out of the way you could get a Fireo for dirt cheap with the 2.8.

Funny you should mention the Fiero. The 3.4 DOHC engine is actually a very highly sought after engine for swapping into Fieros.

 

[SnapOversteer]

By the way, those "reliable" Japanese cars are even more costly to repair than that Monte Carlo will ever be.

If something goes wrong, maybe. But at least little 4 cylinders are easy to work on. If you avoid the stealership and go to NAPA, the prices are comparable for parts.

 

[Smaart Aas Saabr]

You kidding me? It takes several hours to change an alternator on my father's 626... it's under the intake manifold, so it can't come from the top. But can't come from below because the steering rack and exhaust block it.

Mind you the Twin Dual Cam GM W-bodies aren't a good comparison...

 

[doh]

The "funniest" thing about the Twin Cam 3.4 V6 I can recall, was the sinister laughs that I would get from the parts dept guys at the Pontiac dealership where I worked whenever I would buy parts for it.


I would ask for a part

Then they would ask, "What motor?"

I'd reply, "For a 3.4 litre Twin Cam V6"

Then they would laugh and say "ohhhh, one of THOSE"


Not Good.

Our Office Manager bought a new in 1995 Grand Prix GT with 1 too. Of any employee of the whole dealership, she was the one you least wanted to piss off.

 

[mrmonte]

Those 3.4 are total crap stick with something with a3.8 with that mileage. My father in law had one from brand new for 6 months, Ran like crap a real turd got traded in .

 

[Xenon]

By the way, those "reliable" Japanese cars are even more costly to repair than that Monte Carlo will ever be.

Probloem is that most of the components for most cars are made by Amercian companies. And most of the time you can get a whole engine for under a grand.

 

[KIDDIESEL79]

Any used car can be reliable if the previous owner took care of the car and kept up on maintenance. But as for the 3.4 there is no excuse. That engine WAS a POS. The easiest thing you can do to that engine is to add and check the oil!!

 

[1969CamaroSS350]

I love the Twin-Cam 3400's but would never own one myself. My dad's a mechanic and that motor is one of the worst motors to ever come out of Gm right along with the first couple years of the Quad 4. Although I know of a 1992 Cutlass Supreme Convt. with the 3.4 and it hasn't given the guy much trouble. Pretty much with any car you can get a good one or a bad one. It's just the chance that you're more likely to get a bad DOHC 3.4 than a bad 3800. My dad's '90 Grand Am with a Quad 4, one of the most notorious GM engines, has been trouble free for over 140,000 miles.

 

[ChevroletTough]

i don't care what anyone says, the 3.4 and the T4 tranny (or whatever it is) is just a horrible set up..... NEVER BUY ONE.

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!

 

[Tomko]

Sorry to say this Broh, but I think everybody has had a bad used car experience. Consider it a right of pasage as well as a learning experience.

I do understand how this has been the cherry on your 2006 cake, and for that I sympathize.

After my own learning experience I decided that reliability was more important to me than gas mileage. I may burn more gas, but I pay less in repairs, so in the end it probably works out to the same - except I have a working vehicle for a greater percentage of the time. That was my logic when I ordered my 9C1 and I've had success with this approach for almost two decades.

 

[ChevroletTough]

Sorry to say this Broh, but I think everybody has had a bad used car experience. Consider it a right of pasage as well as a learning experience.

I do understand how this has been the cherry on your 2006 cake, and for that I sympathize.

After my own learning experience I decided that reliability was more important to me than gas mileage. I may burn more gas, but I pay less in repairs, so in the end it probably works out to the same - except I have a working vehicle for a greater percentage of the time. That was my logic when I ordered my 9C1 and I've had success with this approach for almost two decades.

I know im not alone yes. But since i was almost forced into this car, it really pisses me off.... I will not let it happen again. I will buy my own car, and if its just as bad as this (which it wont be thankful to my somewhat mechanical skills and knowledge) then its my own fault.

Tomko, did you see you made my avatar??? pretty sweet huh?

 

[Tomko]

Tomko, did you see you made my avatar??? pretty sweet huh?

Yes I have. Thank you for giving me a place of honour in your posts.

You may have missed it, but several months ago I recognized you as one of the Best GMI Members on this thread:

http://www.gminsidenews.com/forums/showthread.php?p=816167&highlight=ChevroletTough#post816167

Thanks,

 

[ChevroletTough]

Flippin sweet! And your quote in my sig is perfect. I have alot of people wow at the fact that I "branded myself" with the bowtie. But no matter where GM goes in the future, I will be right behind them.

People ask: "What happens if GM falls?" (about my tattoo)
My reply : "To remember the good ol' days, when cars were bold, engines were big, rwd was the powertrain, and haulin ass and kickin @$$ was America's past time!"

I may only be 21 years old, but I have a local mechanic who thinks very highly of me. He's always there to help me out and teach me things, for that I am greatful. He's so proud to see "kids" that are interested and know more about cars than just putting rims and exhaust on, becasue lord knows that all they are up to (ricers). Needless to say, I am one of them who excells and enjoys cars, working on more than just exhaust and rims He has taught me so much knowledge. But I have to give credit to GMI and ChevyTruckWorld Forums for expanding my knowledge greatly. These communities are so great, whenever I have a problem I consult my mechanic freind and then the forums whenver I get stuck.

Things do get out of contol on here sometimes, even I know I have contributed to it, but take the good with the bad. This is a way more positive to this site then negative.

I am actually in the ITM program at UW Stout, Ive got my 2year degree at Dakota County Tech in Minnesota, and Im completeing my BS at Stout. Before I went to college I had to make a choice, cars or computers, I chose computers. But I will always be into cars, I love to "tinker" with them and help other people out. Ive actually had alot of my freinds (well the girl ones anyway) that have trouble come to me, which makes me feel good that they trust me to work on their vehicles!

GM down to my Bones!

 

[Tomko]

Flippin sweet! And your quote in my sig is perfect. I have alot of people wow at the fact that I "branded myself" with the bowtie. But no matter where GM goes in the future, I will be right behind them.

People ask: "What happens if GM falls?" (about my tattoo)
My reply : "To remember the good ol' days, when cars were bold, engines were big, rwd was the powertrain, and haulin ass and kickin @$$ was America's past time!"

I may only be 21 years old, but I have a local mechanic who thinks very highly of me. He's always there to help me out and teach me things, for that I am greatful. He's so proud to see "kids" that are interested and know more about cars than just putting rims and exhaust on, becasue lord knows that all they are up to (ricers). Needless to say, I am one of them who excells and enjoys cars, working on more than just exhaust and rims He has taught me so much knowledge. But I have to give credit to GMI and ChevyTruckWorld Forums for expanding my knowledge greatly. These communities are so great, whenever I have a problem I consult my mechanic freind and then the forums whenver I get stuck.

Things do get out of contol on here sometimes, even I know I have contributed to it, but take the good with the bad. This is a way more positive to this site then negative.

I am actually in the ITM program at UW Stout, Ive got my 2year degree at Dakota County Tech in Minnesota, and Im completeing my BS at Stout. Before I went to college I had to make a choice, cars or computers, I chose computers. But I will always be into cars, I love to "tinker" with them and help other people out. Ive actually had alot of my freinds (well the girl ones anyway) that have trouble come to me, which makes me feel good that they trust me to work on their vehicles!

GM down to my Bones!

I'm twice your age, but when I read your latest post it reminded me a lot of the young man that I was.

I too was faced with a choice between working with cars and a career in a less interesting field. I chose the less interesting field, in part to achieve a better family life, but now earn a good enough living to still enjoy cars.

Your desire to learn and keep on learning is an outstanding quality, and one that will take you far in life. I truly believe that you can always learn something from someone. It may be what to do in a certain situation - or it may be what not to do - but you can still learn.

You have the ganas and for that I salute you.

 

[goochman]

When I graduated out of college I wanted a Grand Prix as my first big purchase (91 ) - I tried to hold out for the 3.4 engine but it kept getting delayed so I bought a 91 SE with all the trimmings (looked like the 3.4 GTP) w/3.1 engine.

Im very happy I didnt get the 3.4 afterwards - though the 3.1 did have the dreaded oil leak

 

[Ach]

The problems with the 3.4L DOHC were mainly peripheral (Chevrolet Tough, your engine issues are not out of the ordinary on any motor of that vintage and none sound fatal), the main mechanicals were very solid, but it was much more complex and difficult to work on than the OHV's of the time and more costly to maintain for that reason. As for the timing belt, many Japanese motors also have belts that need replacement every 60K or so, as well as most Audi motors. I think the weakest link with the 3.4L DOHC, as you unfortunately have experienced, was the tranny. But back when it came out, 215 bhp and a 6700 RPM redline from a naturally aspirated 3.4L V6 was a big deal, and it sounded great as well.

 

[ChevroletTough]

I would go as far to say that the 3.4 is a powerful engine for its age. But the tranny was junk from the start. This motor has so many potential problems. Mainly the ones ive come across. The cold start issue is a major problem that no one realy knows how to fix. The cold start issue is not quite fatal, but not good. It burned ALOT of gas on startup, so much i noticed the a difference on the gauge. Not to mention the rich smell, no power to the brakes (yikes!) and horrible acceleration until it warmed up. As far as i know, ive had the most success, some days it would run fine, but most of the time it'd run like crap. The PROM update seemed to help somewhat, and a new O2 sensor. Thought i think the harness that runs from the O2 sensor to the computer is actually the main problem.... I will never know, i feel bad for anyone who has this motor..... get a 3.8.

All and all, Ive learned more about cars from this experience. Ive pulled the computer on this car about 9 times... (don't ask) and so many other things, some of it just simple troubleshooting with simple and complex tools.

It was an expensive lesson.....

 

[King Riffle]

Nothing wrong with driving an import....

That out of the way you could get a Fireo for dirt cheap with the 2.8.

Not a good choice for a daily driver. Hard to work on, expensive to have others work on (assuming you can find a garage that will actually work on a Fiero, seems like most garages despise them), not very reliable, and with the 2.8 you don't even get good gas mileage.

It'd be fun though.