How do I take off the head on a gm 3400 engine

Listen to this , is this the noise you hear .
GM 3 8 Engine Noise This is a 3.8 but can be also 3.1 , 3.4 gm v-6's engines

it is located where the upper radiator hose enters the connecter on the engine


GM 3100 3400 3500 Engine Coolant Temp Sensor Replacement

Not really.
The 3100 is a Chevy 2.8 and the 3800 is a Buick engine.
Most everything is different including exhaust manifolds, engine brackets, and wiring.

Go to Motors Manuel on line or Chilton auto manual on line or public libaray , look up vech. by year and engine and specify head bolt torque . U will need to rent/buy torque wrench auto parts stores are a good rental /loan source. There is a pattern check manuals.

The lifters are hydraulic, so adjusting them is not possible. The lifters can take up very little play, so valve ticking when cold is normal. I have had two of these engines. Be sure to have the heads torqued properly, to keep play at a minimum.

get a manual from your local auto parts store for about 20.00 will detail your proceedure

yes, the heads can be removed with the engine in the van, make sure to have the heads tested for cracks, the 3400 V6 has a bad problem with cracking.....HAVE FUN

the 3100 is a 3.1 litre v6 so that is correct it is a cast iron block with aluminum heads used in several gm cars.

YOU GOING TO HAVE TO GO TO DEALERSHIP.THEY PROBABLY CAN PULL UP YOUR HOSE DIAGRAM ON COMPUTER.BUT THE HAYNES.REPAIR MANUAL DONT SHOW ENOUGH PICTURES.NOW A OLDS ALERO REPAIR MANUAL FROM GM WILL SHOW YOU EVERY THING.BUT THEY ARE EXPENSIVE.OR YOU CAN GO TO AUTO ZONE AND BUY THE CD- ROM ALL DATA DIY.COM.IT WILL PROBABLY HELP YOU FIND HOSE DIAGRAM YOU NEED.

The problem might be fuel injectors...