Bluesky smog when first start engine in the morning (4about 3 min

ok no engine stated?
if gas engine, ?
I bet never tuned-up up in decade,right?> that gets 99% here.
but it can be far more complex, not guessing,,
what if , the ECT reads wrong.
and the PCM thinks you are in ALASKA,and you are in key west,FL..
so,it floods cranked. and cold running,same...

all EFI cars do that ,everyone, like that.'

forget heater (that blow'r motor sucks 15amps and alternator puts that load on the engine, breaking the CAMELS back, for get that
fix MISFIRE COLD that is the problem.!! real.

and new spark plugs top that list????
a rich engine needs more spark, and on HILLS

and scanning the ECT.
does ECT read correctly first thing in morning before starting engine
yes ECT can be scanned keyon, not started.

correct means if last night was 40f, the ECT is 50f in morning
or lower. say 41f.
-20f wrong, 0f wrong , got that? not blow average of last nights
ambient air temps or garage temps parked. there.
the air cleaner can be packed.up
the ISC valve stuck (my 4.0L did that ever 10k miles)most of the cured in 90s with better ISC
leaking injectr.
misfiring cold
and more
best is a tuneup ,pray, and work form there.
doing tests.

yes it does this is what it looks like
Search from over 10 Million Auto Parts

you will need 3 special tools for this job . remove the head and valves . One tool will be turned so that it fits in the guide and is slightly smaller than the guide outer diameter. The other tool will go around the guide and rest on the valve spring seat. This allows the guide to be pressed out without stressing the head . The third tool will fit in the guide and will be recessed so that it slip down over the guide the required distance so that when the guide is pressed in the outer edge will hit on the valve spring seat and position the guide in the correct distance into the head. The tool that was used to go around the guide to press out will be used in the head chamber to support the head during the pressing in process.. I would rather take the head and the new guides to an engine re-conditioner shop and have the job done in 15 minutes so that I could then get then to seat the valves in the head properly

doesn't need a rebuild
try an oil change for the transmission as it indicates dirty oil and sticking balves
should have been changed at the 60000 miles mark or 120,000miles
run fault codes to check for torque converter clutch servo/ solenoid problem

check the PCB balve maybe is cloged and the breather that create high vacuum wen are cloged and create a whistling sound.

Would be in the head.Either cracked or gasket blown.Take it back and have them fix it right or get your money back....

Heed of engine temperature!!! (Wait for engine cooling).
The engine coolant temperature (ECT) sensor is placed on back of cylinder head, towards clutch side. Disconnect the electrical cable plug and remove the fastening circlip. Remove the ECT sensor by pulling out from cylinder head. Extract also old "O-ring" sealing rubber. Install new ECT sensor with new "O-ring" sealing rubber.

Please rate my response. Thanks!

Change engine coolant temperature sensor/ECT/,located on a back side of the cylinder head. There is two sensors.ECT sensor is on a cylinder head,another is on water metal pipe.

The problem here is the ECTS. Engine Coolant Temp. Sensor. It cost around $12 dollars and takes maybe 5 mins to fix with a 13mm socket. Saturn SL series built before november 2001 have a plastic ECTS. When you buy the new one make sure it has the brass tip as some parts stores still carry the cheap plastic one

The problem here is the ECTS. Engine Coolant Temp. Sensor. It cost around $12 dollars and takes maybe 5 mins to fix with a 13mm socket. Saturn SL series built before november 2001 have a plastic ECTS. When you buy the new one make sure it has the brass tip as some parts stores still carry the cheap plastic one