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Forum: S-Series Tech 06-01-2020, 11:15 AM
Replies: 2
Views: 63
Posted By billr
Re: Leaky injectors, good replacement source?

I gotta ask... what does "noticeably" mean; how many cc/min or similar quantitative value? Point is: don't bother with them if leakage is minor. It probably has little effect on how the engine runs...
Forum: S-Series Tech 05-31-2020, 11:10 PM
Replies: 17
Views: 277
Posted By billr
Re: ECU Temperature reading, S series?

You can certainly check the sensor itself easily with a multimeter, but checking the entire system/circuit is going to be more difficult. You will need to go all the way into the PCM to check all...
Forum: S-Series Tech 05-31-2020, 09:33 PM
Replies: 17
Views: 277
Posted By billr
Re: ECU Temperature reading, S series?

Did you connect the new sensor to the car harness and dip the sensor in both boiling water and ice-water? That would tell you if the ECT sensing system is reading OK; no more guessing. If that 180F...
Forum: S-Series Tech 05-29-2020, 10:01 PM
Replies: 12
Views: 178
Posted By billr
Re: 2000 saturn sw2 cooling fan issues

Got it? Live-data is valuable even if no codes are set. That ECT sensor, specifically, can fail "in range" and not set a code but cause the engine to start/run poorly. Same for TPS, same for MAP...
Forum: S-Series Tech 05-29-2020, 09:51 PM
Replies: 34
Views: 758
Posted By billr
Re: Leaking fuel line at fuel rail?

Will you do a (brief) recap of what the current problem is? This thread started as a simple"fuel leak" and has since blossomed. I'm confused about what issue you are trying to resolve now.

PS: ...
Forum: S-Series Tech 05-29-2020, 09:46 PM
Replies: 5
Views: 120
Posted By billr
Re: Hard Shifting problem

Is that 5/8" at the slave pretty much in the "normal" range for the wire-test?

Having it hard to shift when the engine is stopped does not rule out clutch drag. I will elaborate, if you want.
...
Forum: S-Series Tech 05-29-2020, 07:04 PM
Replies: 12
Views: 178
Posted By billr
Re: 2000 saturn sw2 cooling fan issues

There is only one coolant temp sensor on that. If you are going to try maintaining this (or any other modern) car, then investing in the means to get live-data is essential. That can be very cheap...
Forum: S-Series Tech 05-29-2020, 11:35 AM
Replies: 12
Views: 178
Posted By billr
Re: 2000 saturn sw2 cooling fan issues

Also use that live-data from the scanner to see if the fan is being commanded on by the PCM. Same for A/C, see if it is being shown in live-data as "on" even when the fan won't run. Report any...
Forum: S-Series Tech 05-28-2020, 12:34 AM
Replies: 17
Views: 277
Posted By billr
Re: ECU Temperature reading, S series?

If you pull out the ECT sensor to check/change it, dunk it in ice-water and boiling water to check what the live-data reports. Then you can verify that the whole sensor circuit is OK, and see where...
Forum: S-Series Tech 05-28-2020, 12:20 AM
Replies: 9
Views: 194
Posted By billr
Re: Broken Stud Top Motor Mount to Frame/Bracket

Yeah, I think they are welded; would need to be drilled out. I also think a screw and nut could work, but agree it would not be as easy to change that mount. How many times is it done, though? I...
Forum: S-Series Tech 05-27-2020, 10:30 PM
Replies: 17
Views: 277
Posted By billr
Re: ECU Temperature reading, S series?

Pay no attention to all that hype about where the temp needle should be. Neither the t-stat or temp sensing system are precision instruments.

First step is to stick a meat/candy thermometer into...
Forum: S-Series Tech 05-27-2020, 10:19 PM
Replies: 9
Views: 194
Posted By billr
Re: Broken Stud Top Motor Mount to Frame/Bracket

That broken stud should be easy to fix, I sure wouldn't spend $50 for a new bracket (or make a JY visit).
Forum: S-Series Tech 05-24-2020, 12:37 PM
Replies: 8
Views: 245
Posted By billr
Re: Need help troubleshooting intermittent hesitation and hard starting

Although not likely, the PCM is a possible culprit. The symptoms you describe sound exactly what I had with a bad PCM.

Do all the simpler/cheaper stuff first, maybe even throw a CKP sensor at it,...
Forum: S-Series Tech 05-23-2020, 03:50 PM
Replies: 20
Views: 315
Posted By billr
Re: SOHC, coolant leak @ intake manifold?

Is that intake manifold plastic? If so, there is coolant going into/through it via a small metal tube. I'm not familiar with those "new" gen3s, but my understanding is it is a common point for...
Forum: S-Series Tech 05-23-2020, 11:36 AM
Replies: 7
Views: 143
Posted By billr
Re: Rear hub bolt torque?

Are these the four screws that hold the backing-plate and bearing housing to the strut/suspension?

If so, I gotta say... I have never seen screws much larger than 3/8" or 10mm for that...
Forum: S-Series Tech 05-21-2020, 11:57 PM
Replies: 10
Views: 241
Posted By billr
Re: dead cigarette lighter socket

On a '95 it may not be actually F5, I think that is the correct ID for later years. All the "F5" threads and discussion are still pertinent, just look for a burned terminal as described in the...
Forum: S-Series Tech 05-21-2020, 05:29 PM
Replies: 9
Views: 228
Posted By billr
Re: 1995 SL2 EGR issue

No, I really don't know what effect the exhaust leak will have on mixture or engine life. My guess is that it won't harm the engine as long as you are not loading the engine hard for long periods of...
Forum: S-Series Tech 05-21-2020, 11:55 AM
Replies: 34
Views: 758
Posted By billr
Re: Leaking fuel line at fuel rail?

Whoa there! This is a '97 with conventional fuel-pressure regulator (FPR) on the rail and a return line back to the tank?

If so, fuel pressure should vary considerably, somewhat in proportion to...
Forum: S-Series Tech 05-20-2020, 07:13 PM
Replies: 9
Views: 228
Posted By billr
Re: 1995 SL2 EGR issue

Oops, there was a typo in my most recent post above. Would it have made more sense if I had written "pot wiper" instead of "wiper pot"? Do you understand how a potentiometer (pot) is constructed...
Forum: S-Series Tech 05-19-2020, 10:10 PM
Replies: 13
Views: 340
Posted By billr
Re: HELP finding massive coolant leak

The common place for a radiator failure is near where the upper line from the trans is connected. Look for a crack in that area of the plastic radiator end-tank.
Forum: S-Series Tech 05-18-2020, 11:27 PM
Replies: 20
Views: 416
Posted By billr
Re: 2001 SL1 Stick Shift No Power

A compression test can not ensure that an exhaust valve is inop (not opening). Compression will be fine, but the cylinder will be completely stifled because no exhaust can get out. It is a rare...
Forum: S-Series Tech 05-18-2020, 06:42 PM
Replies: 20
Views: 416
Posted By billr
Re: 2001 SL1 Stick Shift No Power

Are you using live-data? It may not be the ECT sensor, I just homed on that because it is such a common problem. There are a lot of other things to observe in live-data. IAT, fuel PW, knock...
Forum: S-Series Tech 05-17-2020, 02:32 PM
Replies: 9
Views: 228
Posted By billr
Re: 1995 SL2 EGR issue

You have checked over-all resistance of the feedback pot and of the drive coil. Next would be to connect to the wiper pot and see if the signal seems smooth and linear as you stroke the EGR pintle...
Forum: S-Series Tech 05-17-2020, 12:03 AM
Replies: 9
Views: 228
Posted By billr
Re: 1995 SL2 EGR issue

Fix that exhaust leak at the manifold to down-pipe flange before fussing any more with the EGR. A leak at that gasket can have an enormous effect on the O2 sensor reading and the PCM may incorrectly...
Forum: S-Series Tech 05-16-2020, 08:41 PM
Replies: 34
Views: 758
Posted By billr
Re: Leaking fuel line at fuel rail?

Don't bother with the wet compression test; your compression is clearly good enough.
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