3400 GM Engine 3.4 Liter Motor Explanation And Discussion




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Eric Devlin: I've got a 98 skylark fuel line was leaking caught on fire fixed the leak and the wireharnes but won't start can anybody give me advice

Dave Greaves: I have this engine.. a shop did the intake gaskets when they went while i was out of town and could not do it myself.. not sure if my issues is do to how they put it back together or not... on the fuel test port I can't get a tester onto it because there is a pipe just infront of it that hinders screwing on the fitting of the test gauge hose... is there maybe a special adapter like a 90 elbow fitting for that or ?

Ron Gabbard: I got an 03 Venture, front right 3 rocker arms doesn't move. Could this be anything but collapsed lifters?

Dave the IT Guy: I wanted to ask if anyone knows how common EGR code P1404 is on these cars? Is this the code that requires the PCM reprogramming? I had my original EGR valve in the car and the CEL came on. I pulled the P1404 code with my scan tool and it said it was the EGR closed postion problem. I replaced the EGR valve with a new one from Advance Auto (don't remember what brand it was) and cleared the codes. About 10 miles of driving later, the CEL came back on and it's the exact same code. I doubt it's carbon build-up in the intake since the code isn't a flow problem code. I also doubt the EGR valve itself is bad since both the original and new are throwing the exact same error code. Any ideas on this one?

Renownedd One: got a grand am gt 2003 and I have that exact green puddle you speak of!

Matthew Springfield: what is the line coming from the upper intake manifold near the fuel pressure regulator

thatsupramk3guy: I got a 2004 alero with what I think it's a bad transmission. when it gets to 3000 rpm it just lags. the MAF is all clean and the car has no catalytic converter what should i do?

Rob: I've got an '01 Alero with the 3400 in it. Recently it's been running rough when the engine is warmed up and difficult to start. I noticed the is a vacuum port without a hose on it and has some very good suction. If i cover it with my finger the car will stall out. This port is located on top left as you're looking at the motor from the front of the car. If you "45" towards the back left corner from the "3400 SFI" on top of the motor you'll be able to see it. I very briefly saw on yours there looks like there to be a line coming off it. Where does it go?

Ramzour: At 2:30 you touch a white vacuum hose with a black elbow connector. Can you briefly explain what that hose does and where the other end is attached to?

Robert Morano: BY THE WAY GM vehicles (Chevrolet, Pontiac, Oldsmobile, ect.)should NOT have green puddles of anti-freeze. All GM vehicles take DEX-COOL which is orange. If you GM vehicle is leaking green anti freeze flush the radiator, block, heater core, and reservoir (puke tank) ASAP

Jorge Legorreta-Luna: Hi, thank you for the video. I have an issue with the small plastic pipe that comes out of the tip of the air intake boot hose. It won't go back in at the other end, the one that goes to the motor. What is it called and what is the purpose of it?

Kyle: I just replace my upper and lower intake gaskets on my 2003 Buick Century 3.1 V6. After everything was put back together, the engine will start but will not stay running unless i'm giving it gas. I can keep it running until I release the gas. The spark plug wires are in the correct order, and the wiring harness is connected correctly. No gas smell in the engine bay, fuel pump pressurizes, and all vacuum hoses are connected. Any idea would be a huge help. Thanks!

Jamie Rutherford: I have a 2000 Alero with 201,000 and I don't have piston slap. Only thing I've done engine wise besides oil change is I had to put a water pump on it when I got it. It had 192,000 when I got it. Otherwise I love it. Car still runs like a champ. I do have one slight issue that's weird. in the summer the car runs a proper temp but in the winter time the temp gauge won't even make the first line after cold unless you're setting idle. Even then once you get moving again it drops right back to that temp. So the heat ain't as hot as it should be.

Usucceed: 2003 Olds Alero 3.4L
This summer after sitting for about two weeks my car would not start, it would crank but not start. I put new plugs in and bought starting fluid and it would only start with a few shots of ether. I replaced fuel filter, fuel pump and pressure regulator during the course of the next couple months and still the only way to get the car to start after sitting overnight is to use starter fluid!!!
What the heck is next?

Bailey Steinmann: My car died on me a few times. it died yesterday and woulnt start. i got it towed and did the fuel filter, no change. it cranks strong but just wont start.

Nick Smith: i have a 2001 olds alero so i had a blown intake manifold gasket i changed it cleaned alot of the crap that collects on the inside of the engine. anyways i started it up and it runs good once it heats up to operating temperature. it starts to lope i guesse would be the term for it. any ideas?

Ethel Harp: will my 3400 pontiac motor and trans fit into my 3400 Chevy impala

Tony Tripodi: Thanks I will check I have a new alternator

Tony Tripodi: my 2000 grand am has 3870000 3.4 L it still runs

Tony Tripodi: hi I have 2000 grand am 3.4 l when go between 2000 and 3000 RPM my surges up and down mosley going up hill and when I'm in park car RPMS GO UP AND DOWN AND MY DASH LIGHTS GO DIM CAN YOU HELP PLEASE
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3400 GM Engine 3.4 Liter Motor Explanation And Discussion