1999 Saturn SL2 4 cyl Front Wheel Drive Automatic 124800 miles
Recently purchased used with SES light on, mild external oil leak from head gasket area, and a temp gage that did not go over 1/4 unless in traffic.
I had Autozone read the codes, flagged EGR and knock sensor.
Cleaned EGR and light stayed off for a short time.
Light came on again, this time Autozone read P0410 secondary air.
While troubleshooting that I became convinced I needed to clean the air tube to the exhaust manifold. Before I could get to that I washed the engine down and then the fun began.
Car immediately began stumbling during mild acceleration when warm under moderate to heavy loads.
Service engine light came on.
I replaced the spark plug wires. There was a little water in well 1, I dried it out. I replaced the ECTS. Temp gage still reads 1/4 when warm which measures as ~185 degrees.
Codes now read by garage:
P1670 - quad driver
P1671 - Driver 4 Line 1
P0327 - Knock sensor signal low
P1599 - stall detected
P0410 - Secondary air
Found a Saturn quad driver troubleshooter here : -)
-Upshift bulb N/A
-Coolant temp bulb lights up
-I do not know what a 'shift to drive' bulb might be
-Car does not have fog lights but came with a fog light relay. I swapped the fog light relay with the A/C relay and the cooling fan relay and neither helped the stumbling problem.
-I disconnected the EGR and (I think I got the correct gizzmo, if it is under the intake runners for cylinders 3, 4) canister purge electrical plugs, same problem.
-I disconnected the purge vacuum line to intake, same problem.
-Speedo has not misbehaved that I have noticed.
Note: While cleaning the PCV valve I noticed it seems to be made of a thin disk of metal that barely reaches its seat, not beefy and with a sure closure like the PCVs I am used to. Is this normal?
The car is new to me and I would rather keep the repairs on the cheap side until it proves it is not a basket case. So far - not so good. I do NOT live in an emissions test area. I am willing to get the emissions up to snuff if the car seems reliable.
I have a 3/4 of a day into this and I am getting weary. Thanks a bunch for any help you can offer.
Wednesday, February 3rd, 2010 AT 8:23 PM