Chrysler Dynasty AGAIN......Mr Stern, HELP!

As I stated in previous post, MAP sensor out of calibration possibly causing
problem. EGR wont cause back fire. replace the map sensor.

Glenn Beasley
Chrysler Tech

 

3.3L

 

ok thanks...we're looking for it. The Chilton book does mention code 14 as
Map Sensor as well.
So we'll go have a look. I hope this part is not too expensive since
we've already spent $$ on the O2 Sensor.

 

hello again....not sure if you're following any of my other posts but here
goes, we replaced the 02 sensor...didn't fix the problem. We did the on
off on off thing again and this time came up with 12 14 55. 14 is the Map
Sensor but we don't have one? The car is a 92 with a 3.3L
Is it called something else? Diagnostic something? Is that the same thing
and is it feasable to get one from the junkyard? We're so fed up with this
car. Grrr! By the way, my husband recently got a muffler for the car (not
new) and installed it himself. Could this possibly be the problem? How
frusterating!!!

 

You keep complaining about the vehicle yet you insist on installing used
junk parts that may be causing your problems and frustration with it.

Glenn Beasley
Chrysler Tech

 

the 02 sensor was brand new....the muffler was almost brand new taken off a
recent wreck. Why buy brand new off the shelf if I could buy one for $15
(almost brand new) off a front end wreck?
The water pump was brand new as well as the hoses. I'm just wondering if
some of these suggested parts are worth buying at a wrecker vs spending
$299 on the EGR valve and another 129 on the Map Sensor? We already spend
65$ on the 02 sensor and that was NOT the problem. I just hate to spend
our hard earned money on things that aren't fixing the problem. Could
this be muffler related? (we're not made of money and can't afford putting
it in the shop at 58$/hr +)
We've already done that twice for new rebuilt transmissions to the tune of
close to 2000 each time all within 2 yrs of eachother)

 

so can you help me with the location of that Map Sensor? Our car is a 92
with a 3.3L and we just can't find it. In the CHilton Manual they're
calling it a ?Diagnostic somethingrather? Is this the same thing?
Thanks for your help. I'm not trying to be a pain...(you're talking to
the wife) since the hubby is relatively computer uhh...uninterested lets
say)
Maybe I'm moreso frustrated because we now have a brand new (since Oct)
car... and it has less than 5000 km on it and has been in the shop already
3 times...for a new starter, new belts and most recently a new alternator.
All that to fix a loud squeeling. Almost 2 weeks they had it in the shop
only to return it with white dog hair coving the back seat. We don't own
a dog. So that and then THIS has just been the icing on the cake. Sorry
if I sound aggresive, I don't mean to. I really do appreciate all your
input so far.

 

Hi...

It's definitely not a diagnostic anything, it's a physical
device mounted to and extending into the intake manifold.

It's located on the rear (closest to the driver) side of the intake
manifold.

And with absolutely no disrespect to you and/or your husband,
just in case... the intake manifold can be found by
following the _large_ air hose that leaves the air cleaner and
connects to the top of the engine. One end on the air filter,
the other is the intake manifold. After you've found the
intake manifold look on the back of it, on the car side, furthest
from the radiator. There'll be a three wire electrical connector
on it. I _think_ (and stand ready to be corrected) that you'll
find it mounted with two screws, one on either side in the
horizontal plane.

And while I'm at it, it's not possible that somehow with all this
work that a vaccuum line has been knocked off, or left disconnected,
or damaged, is it?

Take care.

Ken

 

I just flashed to the scene in Christine where the shop owner growls at
the kid "yeh ken pick through that old shitpile of parts for anything ye
need"

Ted

 

Can't afford a $59.00/hr proper diagnosis, But you can afford a couple
hundred dollars to replace parts that DID NOT fix the problem? Bang your
head on the desk in front of you!! No, really! People here give you
suggestions, Einstein! Since your car is not hooked up on a scanner and, the
results posted here, explain how any of this is going to diagnose your exact
problem?

 

Thanks, you've been a great help!

 

This comes from experience, and I realize Glenn knows alot more that I do,
BUT...I have a 92 Shadow, 2.5 automatic, that exhibited these same symptoms,
and it WAS the o2 sensor that was failing. Not completely gone, but
failing.
Would run fine cold, but after about 15 minutes, it felt like a bad fuel
pump, or clogged fuel filter. Seems the failing o2 sensor thought the
mixture was to rich, and was doing its best to lean it out. Replaced the o2
sensor, restored driveability immediately. Mechanic found it using code
reader, he did say that was the first time he had had one of these cause
driveability problems. Evidently, they (O2 sensor) either work, or they
dont, usually. (?!?)

Deke

 

They either work don't work or are slow to respond. And that happens all the
time with those sensors.. They only work when the engine is warmed up and in
closed loop. You also had the fault code set.

Glenn Beasley
Chrysler Tech

 

and the engine does indeed have a map sensor

 

maybe just mnaybe if you had taken the car in it wiuld have been fixed
without the guesswork u have added to it

 

Learn how to reply to the right person dirty!!

 

I would inspect circuitry 1st and make sure that the wires going to the MAP
sensor are ok. It would suck to replace the MAP sensor only to find out
that a pin has receded in the connector or a wire has abraided and shorted
to ground. With the exception of the o2 sensor, most sensors are quite
durable, usually its the wiring or a vacuum leak etc.

 

and the winnerrrrrr isssss........

Bathtub Admiral....

After replacing NEW the O2 Sensor....taking off the NOT SO NEW
muffler...the fuel filter ...etc....it still wasn't working. So yesterday
hubby and boys went thru the whole front end and checked every wire and low
and behold there was a wire (in the vicinity of the recently replaced
thermostat NEW...that had come unplugged....so once it plugged in...it
Purred like a kitty!

Thank you all soooooo much for all your help!