Tappet noise? 3.3 voyager
Roland
lifter nois. The noise is evident on acceleration whether the car is hot or
cold and it sounds like something in the valve train. I have owned the car
since new and have changed the oil every 3-4k miles.
It runs fine but burns about 1 quart of oil every 900-1000 miles;(when new
it burned a quart every 1200-1500 miles).
My question is what to do if anything about the tappet/lifter/valve train
noise? Since it runs fine, should I just turn up the radio a bit? Or is
this noise the sound of impending disaster?
thanks
Roland
Randy Bassham
and it's turned out to be a broken rocker arm shaft mounting
boss on the back head. The engine was quiet at idle but as the
RPM's were brought up a loud pecking was coming from under
the back valve cover. Since the engine has 175,000 miles on it
I decided to pull it and rebuild it, just picked up all the pieces
from the machine shop today, had to buy one head, and replace
all the exhaust valve guides but other than that everything will
be going back standard, there just was not enough wear in the
cylinders to detect with a micrometer, also the crank was in fine
shape. Also these engines at high miles have a tendency to have
a lot of wear on the cam bearings that can cause a loss of oil pressure to the
lifters and rocker arms...Good Luck
Kirk Matheson
develop in the mounting boss for the rocker arm. This can cause the noise
that you describe. I am not sure if the head can be repaired, or if it has to
be replaced.
I have a '93 Voyager, so this is one of the things that I am watching for as
the mileage increases.
Kirk Matheson
Kirk Matheson
Roland
Randy Bassham wrote in message <39178470...@semo.net>...
>This is exactly the symptom I had on my 90 Dynasty with 3.3
>and it's turned out to be a broken rocker arm shaft mounting
>boss on the back head. The engine was quiet at idle but as the
>RPM's were brought up a loud pecking was coming from under
>the back valve cover. Since the engine has 175,000 miles on it
>I decided to pull it and rebuild it, just picked up all the pieces
>from the machine shop today, had to buy one head, and replace
>all the exhaust valve guides but other than that everything will
>be going back standard, there just was not enough wear in the
>cylinders to detect with a micrometer, also the crank was in fine
>shape. Also these engines at high miles have a tendency to have
>a lot of wear on the cam bearings that can cause a loss of oil pressure to
the
>lifters and rocker arms...Good Luck
>
Randy Bassham
and did a valve job on it.
John Olson
covers and found exactly the same problem...broken boss for rocker arm
shaft. It made a HORRIBLE noise and I am right in the midst of pulling the
engine BECAUSE I cannot yet tell if there are other problems.
3.3L Dodge Grand Caravan.
Randy Bassham <rbas...@semo.net> wrote in message
news:391A0A73...@semo.net...
Norvin Gordon
I have the same problem with my 90' dynasty w/120k miles. I don't mind replacing
worn parts as needed, but I feel that this is a design flaw and Chrysler should
be giving some sort of assistance with the repair, at least to the original
owners. I just bought a 00' Chrysler T&C w/3.3 and now am beginning to wonder if
that was such a smart move. Lets see, tranny problems, now engine problems, I
wonder what will be next?
Norvin, a loyal Chrysler product (use to be anyway)
Jill Nelson
it. I'm not sure on the date, but when ChryCo found recurring weak pedestal
problems, they beefed up the cyl. heads... probably around '96 - '98.
Mike.
frank_...@my-deja.com
rbas...@semo.net wrote:
> Also these engines at high miles have a tendency to
have
> a lot of wear on the cam bearings that can cause a
loss of oil pressure to the
> lifters and rocker arms...Good Luck
This seems to be the situation with my '92 Caravan
3.3l with 130k miles. Fairly loud clatter from the
rear valves. Mechanic didn't pull the rear valve
cover but is pretty sure it's a worn cam bearing with
loss of oil pressure back there. His estimate: $3k to
install a rebuilt engine, or almost that much to tear
it down and fix it, neither of which is a good option
for me.
My question is - how long can I drive it before the
engine quits altogether? What will eventually happen?
Sent via Deja.com http://www.deja.com/
Before you buy.
D J Mann
>In article <39178470...@semo.net>,
> rbas...@semo.net wrote:
>> Also these engines at high miles have a tendency to
>have
>> a lot of wear on the cam bearings that can cause a
>loss of oil pressure to the
>> lifters and rocker arms...Good Luck
>
>This seems to be the situation with my '92 Caravan
>3.3l with 130k miles. Fairly loud clatter from the
>rear valves. Mechanic didn't pull the rear valve
>cover but is pretty sure it's a worn cam bearing with
>loss of oil pressure back there.
Ask your mechanic if he is referring to the cam in the rear head. If he says
yes, and if you have a 3.3 litre engine, do these steps first.
1. Climb into your van.
2. Start it
3. Put it in reverse
4. Drive out driveway with mechanic shop visible in rear view mirror.
5. Find an honest shop.
That is NOT an overhead cam motor.
He is trying to give you a yutzing.
frank_...@my-deja.com
jaco...@value.net (D J Mann) wrote:
> Ask your mechanic if he is referring to the cam in the rear head.
This guy is reliable - he's worked on my cars for years and works
regularly on state police cars. (I do think he's a bit overpriced,
though.) He and I are both aware that it's not an OHC engine. I might
have misstated the details a bit...
but the question remains. If this rocker arm or lifter (or whatever)
isn't getting lube because of a lack of oil pressure, are there any
educated guesses as to how long I can drive the car without something
catastrophic happening? There is currently no impact on performance
(acceleration fine, mileage is the same) - just the clattery noise.
Blackhawk37
I have a 91 Caravan with the 3.0 V6 with 150K on it. For the last 4
years I have put up with the tap tap tap noise when I start the van for
the 1st time each day. Comes from the rear 3 cylinders. It used to last
about 30 seconds but now can go on for a couple of minutes. Once the
noise goes away it does not come back unless the van sits quite some
time, usually overnight. I took it in to be looked at a few years back.
The engine mechanic told me it was lifter noise and that replacing the
hydraulic lifters may fix the problem, but there was no guarantee, plus
parts alone would cost me a tidy some. I was told there should be no
damage occurring to the engine unless the noise was still there all the
time. I elected to leave it and put up with the annoyance.
Other problems with this van:
1. Transmission - self destructed at 71,300 (just over the 7/70) got it
rebuilt for only $525, now I am getting indications that it might be
acting up again. I have read about transmission problems with this
transmission.
2. A/C noise - high pitch whine. Have not been able to tell if it is the
belt or pulley on the compressor. I just take the belt off when it is
not hot here in Washington State.
3. Oil leaks - Cam shaft seals, valve cover gaskets have been replaced a
few times, but soon start back up leaking. Front end seals were replaced
and appear to be holding their own for now.
4. Coolant leak - comes and goes. I poured some stop leak in the
radiator and it stopped though I dont like to use that stuff. I need to
flush system out but dont want leak to start back up. An engine tear
down to repair possible problem is not in the budget right now.
5. Speedometer - some days it doesn't kick in for a few miles. Had it
looked at by dealer but the problem has never been fixed permanently.
It's an electronic speedometer, no cable. Any ideas on what might be the
problem here?