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Forum: S-Series Tech 01-17-2016, 02:39 AM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Compression? A few hard starts may need GM's phrase for flooding, 'clear flood mode'when several starts fails; holding throttle wide open tells the pcm to stop injectors during starting to allow more...
Forum: S-Series Tech 01-14-2013, 10:45 AM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

There are no such things as a "good troubleshooting guide" for any vehicle, just the GM service manual. The same for any other vehicle manufacturer. While service manuals are the only manuals used by...
Forum: S-Series Tech 01-12-2013, 10:43 AM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Yes, ign module and coils. With your last spark test showing less than reliable spark, I think you found the problem. Please update this thread with any new info.
Forum: S-Series Tech 01-05-2013, 04:12 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

While waiting for new parts, was the ignition system ever removed for corrosion cleaning? I'm loathe to review this thread from the beginning.................:blockhead
Forum: S-Series Tech 01-05-2013, 03:40 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Junk yard nearby? Members buying used ignition parts save money against buying new.
Forum: S-Series Tech 01-01-2013, 07:02 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Well, something is either causing excessive fuel injection or spark isn't consistent while starting. Sometimes aftermarket equipment can be very helpful, other times they're just distractions from...
Forum: S-Series Tech 01-01-2013, 05:39 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Silicone grease is not a factory dielectric used anywhere on Saturns. This was done by someone else when the sensor was replaced. Most likely the connector was already beaten to death so silicone...
Forum: S-Series Tech 01-01-2013, 04:52 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Its ok if fuel pressure bleeds off after an hour passes. Who cares about fuel pressure when the engine's off after more than 15 minutes passes. This would have no effect on starting/running. Its not...
Forum: S-Series Tech 12-31-2012, 07:56 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Re-reading from the beginning, fuel pressure @58 psi and strong spark at start up results in either flooding or lean mixtures at random along with random backfiring. Summing this all up seems to...
Forum: S-Series Tech 12-31-2012, 03:55 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

A fuel test is simple; one of two ways - the simple 'depress the fuel test valve on the fuel rail' or use a fuel pressure gauge on the fuel test valve. All you need to do is turn on the ignition and...
Forum: S-Series Tech 12-31-2012, 03:20 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

There are several ways to learn about EFI systems but very seldom do they cover how to troubleshoot. The basics need to be understood as in what a coolant sensor is used for, how signals are output...
Forum: S-Series Tech 11-26-2012, 03:41 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

I understand completely. I learned old school and fortunately (was forced into) picking up EFI systems with my first new car. Back then the service manual was one book and only cost $25-$50(?). I...
Forum: S-Series Tech 11-22-2012, 10:58 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

It don't matter how much you or I know. Unless you have a well grounded knowledge of electronic fuel injection systems and understand how sensors work, fail, and produce repeatable symptoms, its...
Forum: S-Series Tech 11-22-2012, 06:56 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Disconnecting/connecting the iacv is not a test/troubleshooting procedure with the engine running. Whatever you saw isn't what the pcm sees and adds to the confusion; not only are you throwing out...
Forum: S-Series Tech 11-22-2012, 10:23 AM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

I'm not sure if you can buy vacuum parts as these are specifically designed, making them dealer items only. Try gmparts online, rockauto, junk yard.

The pcv valve has been part of emissions...
Forum: S-Series Tech 11-22-2012, 12:00 AM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

The majority of engine start issues relative to faulty sensors relate to the coolant sensor. For cold starting, engines need more fuel than a warm engine so coolant sensors detects cold coolant and...
Forum: S-Series Tech 11-21-2012, 06:30 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

Well, the last post suggests something wrong and the fuel/air mixture went too lean instead of rich for cold start up. The fuel not spraying out the fuel test valve reinforces a low pressure issue -...
Forum: S-Series Tech 11-19-2012, 01:33 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

The only issue with HF fuel pressure gauges are the 'occasional' leaks if you can deal with it otherwise it can be hit or miss with loaners. Its been said that first impressions count so look at a...
Forum: S-Series Tech 11-06-2012, 01:41 PM
Replies: 65
Views: 27,376
Posted By fdryer
Re: Cranks for a long time before starting

1-Saturns from '01 and up use the brass coolant sensor. The coolant sensor wasn't the problem. The connector is another issue that may need to be checked for any corrosion, interfering with signal...
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