Looking for proper order of push rods back of 3.4L Pontiac engine 1999 Pontiac.
I've been trying to find which repair kit to use for the rocker arm bolts that were stripped. I can't
seem to find the size anywhere or pitch. What do you recommend?
98 3.1L. Did the lower intake gaskets and I cleaned the intake runners (where I could see the
ends of the injectors)a lot of build up. I also took of the two cables that go to the throttle. One is
for the pedal and the other I believe is for the cruise control. I got it started but runs ruff till I pull
the throttle a little. The adjustment plastic thing on the one cable is set I think. But now I have a
rocker clatter I pulled the valve cover to find the 4th from the left loose as I could spin it out by
finger tips. Threads look okay . Question is Did I break something ? Do I clean and re-tighten
this. Could I have put in the wrong push rod ? You say their different lengths ? What is the actual
length? Maybe Ill pull the front ones? This one is the only one I backed off to get the push rod
out .The rest I used a tool to pry back the rockers. Help.
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I did intake gaskets on a 2002 3.4 put everything back together and now I have a misfire on cyl 4
and no compression. I took off valve covers again took everything out rocker arms and push
rods and everything was in correct order. Do you have any ideas of what I can look for? The
torque specs were from a gm dealer so that is all correct.
|You are going to have to tap the bolt threads in the cylinder
head and install inserts. See previous page of comments for
1997 Pontiac Transport Montana 3.4 liter , overheating issue , replaced thermostat , water
pump, radiator cap, radiator fans , then replaced intake manifold gaskets after reading about
this problem online. Van runs fine in 50 degree and up weather but when its below 50 outside
the block seems to somehow create a vacuum and push all the coolant out of itself and overflow
the expansion chamber. Currently have the intake off and am getting ready to remove the
heads and take them to the machine shop to checked and repaired and then re-assemble with
the new Felpro problem solver kit . I was just wondering if after all these repairs if the heads
being repaired back to specs if they are warped and the new gaskets would more than likely fix
this issue or if i should be looking for a cracked block/head or faulty freeze/ soft plugs . There is
zero antifreeze contamination in the oil and no abnormal exhaust upon start up .
|Well, first of all, the block is not creating a vacuum to push the
coolant out. That would be called "Pressure". Yes, you have a
rear cylinder head gasket blown- very common.
Did a intake gasket on a 2001 3.4 olds. Number one cyl had switched the push rods and bent
one. I checked them all and replaced the one i bent. They are all right and moving but the car is
missing and sounds like i bent a valve. I this possible or should i check something else?
|Yes, you may have bent a valve. Do a compression to confirm it.
What is the torque sequence procedure for the UIM? So that I don't crack one of the bolt lobs. I
have heard that if you do not do it the right way. You will end up cracking the UIM.
Hello, I have 1999 Olds Alero 3.4 v6. I would like to get better mpg. On the net places and
people tell about how that the heads and intake on the 2004 3.5 v6 not the vvt motor will fit the
1999 to 2004 olds Alero 3.4v6 and will increase hp 15 to 20 and also mpg 5 to 6. Because the
3.5L v6 heads are better design with the spark plugs un shrouded. My question is the 1999 to
2005 Pontiac Montana has a 3.4 v6 rated 15hp more and 10 more torque than 1999 to 2004
olds Alero 3.4v6. Is the 1999 to 2005 Pontiac head design the same as the 3.5v6 but same
intake as the 3.4v6 (only 3.5v6 intake will fit 3.5v6 heads)? Then if you use these Montana
heads (a lot more of them around) you possible will get better hp and mpg as the 3.5v6 head
|Ok, this is one of the strangest ideas I've ever heard of. You
want to spend upwards of $1000 to change over engine parts to
only get a return of 5-6 mpg? Just plain dumb! First of all, the
heads have very limited design changes and you will NOT get
5-6 mpg from the change, I don't care what you read on the
Internet. You'd be lucky to get 1 mpg increase. It is just not worth
the trouble of all the mechanical work that needs to be done
here. Why don't you just try to get a few extra miles per gallon
out of what you currently have? Keep the air filter clean, run
good quality gasoline, keep your foot out of it when you can,
keep the tires correctly inflated, etc. All these regular tips are
worth a few mpg. Don't change engine parts, or you'll be sadly
I can pick heads at a local junk yard cheap.
About 75.00 for both. And I do the work myself( intake and push rods already out for intake
gasket I did) Way less expensive as buying brand new and paying someone else
to do it.
|Does it matter witch way you put lifters back in when doing lifters?
|Two rocker arms bolt holes are stripped on my 3.4 Chevy Impala; one of them already had a
helicoil in it and it came out; anyhow, what's the exact Helicoil repair kit I need to fix this? I went to
the store but they couldn't tell me which one I need, and I don't know how to determine that
|Go to the dealer to get the correct kit. If one hole was repaired
already, you cannot do it again. You may need a new cylinder
|As long as they are not upside down, not it does not matter- on
most engines. On some this does and is very important.
|Thanks for your response. I called my local GM dealer but they couldn't help.
After doing a lot of research online I bought the M8x1.25 kit at my local auto part store. This
seems to be the right size. The one hole that I thought had already been fixed has not. What
came out of it was the aluminum thread not a Helicoil, so I should be able to repair it.
If this doesn't work however, is it possible to tap the hole a size or two larger and use a bigger
bolt on the rocker arm? The hole in the arm looks big enough to accommodate a bigger bolt.
|MY question is, where is the check plug located on the side of the transmission for the
0lds Alero 3.4l v6. When I look upon the web and ask I am told on the side of the
transmission. Well,telling and finding is two different things. I have tried to find it. Can you
show pics. would of been great if GM just had a dipstick so you could from looking
underhood fill and check easy.
|Ya, that was a very dumb idea. Sorry, dont have a
|i did a intake gasket on a 3.1 gm put it back together and i had a fuel leak and now the oil
is coffee looking and the lifters are all clattering do you think the lifters are ruined due to
the fuel leak and what could cause the oil to be coffee looking would it be the fuel or could
it be coolant somehow.
|That color is not caused by fuel. It is a coolant and oil
mixtures. Maybe something went wrong during the intake
replacement, or you have a blown head gasket.
|i have been working on cars since i knew what a wrench was used for , my thoughts on the
3.1 3.4 and 3.8 engine is if it breaks scrap the car and get another one no matter what
you do or fix it's just a junk engine plain and simple.
|I'm doing the intake gasket on a 97 olds silhouette (3.4 VIN E), when I pulled the push
rods, I noticed that several of them were scored on the top side. Since I'm just repairing
this van to get us by for 6 months or so, I would rather not replace the push rods and
rockers. I was going to just them with some valve cutting compound, but didn't know if this
would be a bad idea due to the small protrusion on the end of each rod (which I assume
facilitates oil flow in the rocker-rod seat) would I just be better of re assembling it and
letting it go? Any experience with this? By the way, the scoring is due to sludge inside the
pushrods, miraculously, it does not look like any other part of the engine suffered from
lack of oil flow due to clogging etc. Thanks!
|Some scoring is normal on theses. If there was no top
engine noise before the repairs, i would not worry about
it. Just go ahead get it together. If you would like to send
us a picture, we could get a better idea.