Question about 1996 Saturn SL
Is it possible to change the heat sensor without disconnecting the negative battery cable and still have it work?
Posted by Anonymous on
No, it's advisable to disconnect the negative battery cable. Why do you wish to experiment?
Posted on Jul 23, 2013
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Posted on Jan 02, 2017
SOURCE: Coolant Leak in 1997 Saturn SL1
if there is no heat coming from the vents i would bleed the coolant system for air, usually trapped air in the system will cause this lack of heat.
Posted on Nov 27, 2008
PO455 is a large evaporative fuel leak. A bad fuel cap is ONE of the things that COULD be the problem. Fuel system cleaning only lightened your wallet. Reading your post is confusing. Did all this start AFTER the Valvoline Wallet Flushing? If so , they left something loose or disconnected. I would find a qualified repair shop to fix the problem, and if it has anything to do with what Valvoline did, make them pay the bill.
Posted on Nov 12, 2009
For old models, Saturn/GM also used the same material
fiberglass gasket in your model, you almost certainly have a leak from
a crumpled, sucked-in gasket as I suffered (and many others). I would
say going to Saturn dealership to make repairs is probably not good
idea if they are going to put in the same GM intake gasket part. Maybe
possible to specify Felpro gasket with whatever shop you go to if you
don't do the repair yourself. I would not go too long with your car in
that condition as there is localized leaning at your cyl-3, that could
cause a burnt exhaust valve there.
The exhaust is extra hot venting out that cylinder. P0303 is misfire at cyl-3. Mine was P0301 (cyl-1). You may get P0507 once in a while when PCM fails to control the fast idle caused by the leak under certain conditions. Most of the time, it is very slow idle caused by 3 cylinders running. You run smoother in cold idle because the IAC opens up to increase idle and end up lowering the manifold vacuum, so the reduced vacuum causes less leaking at the failing intake manifold gasket.
I'd say try cleaning everything with your ignition before replacement; Idle problems could be caused by engine coolant sensor (ECTS). Are you sure it was changed? Did they put on a new wire connector along with it?
Posted on Dec 29, 2009
SOURCE: I have a 2000 Saturn
did you replace the engine coolant temp sensor and harness?that will set a p0341,p0340 code and cause hard.no start as it misreads and dumps too much gas,,,,,the sensor is plastic and sits inside the head and crakcs and leaks into the harness and corrods,,,,,,you need a new updated brass sensor and harness,you must do the harness,its a pigtail you wire in,,,,,do not buy autozone junk they misread you need the saturn sensor and connector,like $70 for parts,,,,,,,that will fix it,,,also do not run platinum spark plugs that will set the light as well
Posted on Apr 09, 2010
curious to know if you got this solved. Guessing downstream o2 sensor. did your vue idle high? act like it was getting too much gas? Let me know please.
Posted on Oct 29, 2010
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Removal & Installation
WARNING When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.
NOTE Allow the O2 Sensor to cool down before conducting the test. The O2 Sensor voltage should stabilize at 5.0 volts. Raising the hood may help in reducing under hood temps quicker.
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