Slow Progress is better than No Progress.

[Beach-Burban]

Originally Posted by nsiti

Sorry to hear. Getting stranded is the worst. Have you contacted Edelbrock customer support to get their feedback?

Good call nsiti, but I was first doing my due diligence by checking the things they might ask me about…and as it turned out, the Tech really knows his stuff and identified the issue very quickly. It was a faulty MAP Sensor (so I replaced this one with a quality “Made in the USA” one!)…and being out of range prevented the trigger signal to the injectors from being sent, so they weren’t squirting! He’s also going to help me dial-in the system after I get another 50 miles or so on it!

Woody

[Beach-Burban]

Originally Posted by Ol Blue K20

X2, maybe they've experienced this before.

You are correct Dale…the Tech has been with Edelbrock for a really long time and is the Lead-Tech for the Pro Flo 4 EFI’s, so he knew exactly the right questions to ask and quickly resolved my issue!

Woody

[Beach-Burban]

Originally Posted by HO455

Oh man what a bummer! I'm afraid I don't know enough about your set up to provide troubleshooting help outside of basics things to check.

Good luck and let us know what you find.

I’ve been consumed with learning about this system for over a year now, and I still didn’t know what to look for other than the basics!!! I’ve got the Tech’s name and number in my phone’s Contact info now, so I’m feeling better about it!

As I said in my other response…he’s even going to help me dial-in my “off-idle” issues and square things away for me after another 50 miles or so of the ECU’s “self-learning” regiment!

I didn’t get a great answer as to why the MAP Sensor failed…but it was an AC/Delco product, which I’m pretty sure is made in China? My replacement is made in the USA by Delphi, who is the OEM parts supplier for GM now…so that could be the answer?

Woody

[nsiti]

Originally Posted by Beach-Burban

Good call nsiti, but I was first doing my due diligence by checking the things they might ask me about…and as it turned out, the Tech really knows his stuff and identified the issue very quickly. It was a faulty MAP Sensor (so I replaced this one with a quality “Made in the USA” one!)…and being out of range prevented the trigger signal to the injectors from being sent, so they weren’t squirting! He’s also going to help me dial-in the system after I get another 50 miles or so on it!

Woody

Glad to hear. Did the faulty MAP sensor come with the Pro Flow kit? Are they replacing it under warranty?

Cheers,
Nick

[Beach-Burban]

Originally Posted by nsiti

Glad to hear. Did the faulty MAP sensor come with the Pro Flow kit? Are they replacing it under warranty?

Cheers,
Nick

Thanks Nick…I’m relieved the fix was something that was readily available, plus I learned something!

Yes…the AC/Delco was pre installed on the throttle body when I received the kit, but I don’t actually know if it would be under warranty? That’s something I’ll look into after the Tech helps me finish with the “Advanced Tuning”…as he’s not the person that would be making that call (but I’ll gather any intel about it along the way!).

Nick…Did you ever receive your Pro Flo 4 system, or did you cancel that order?

Woody

[HO455]

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

[LockDoc]

Originally Posted by HO455

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

I agree, I certainly wouldn't hesitate to ask.

LockDoc

[nsiti]

Originally Posted by Beach-Burban

Thanks Nick…I’m relieved the fix was something that was readily available, plus I learned something!

Yes…the AC/Delco was pre installed on the throttle body when I received the kit, but I don’t actually know if it would be under warranty? That’s something I’ll look into after the Tech helps me finish with the “Advanced Tuning”…as he’s not the person that would be making that call (but I’ll gather any intel about it along the way!).

Nick…Did you ever receive your Pro Flo 4 system, or did you cancel that order?

Woody

Hi, I did receive my Pro Flo 4, not long after you. I recall that it was extremely delayed due to covid. The supply chain was seriously disrupted. My cynical mind wonders whether there will be a greater level of defects for items built during that period.

My restoration build is in the final stages of bodywork, of which I've been posting photos and brief commentary in the build section of this forum. Hopefully the engine and efi installation wil commence in a couple of months.

Keep us updated on your progress!

Nick

[Beach-Burban]

Originally Posted by HO455

Great to hear that tech support actually provided support. Fingers crossed on the warranty side.

And it’s additionally great that Peter (from Edelbrock) stayed in Torrance when the HQ’s relocated out of state, and has told me to ask for him whenever I call for help!

Yep…fingers crossed!

Woody

[Beach-Burban]

Originally Posted by LockDoc

I agree, I certainly wouldn't hesitate to ask.

LockDoc

I’m in agreement too, Leon…but I’m focusing on the Tech Support right now, then I’ll ruffle a few feathers.

Woody

[Beach-Burban]

Originally Posted by nsiti

Hi, I did receive my Pro Flo 4, not long after you. I recall that it was extremely delayed due to covid. The supply chain was seriously disrupted. My cynical mind wonders whether there will be a greater level of defects for items built during that period.

My restoration build is in the final stages of bodywork, of which I've been posting photos and brief commentary in the build section of this forum. Hopefully the engine and efi installation wil commence in a couple of months.

Keep us updated on your progress!

Nick

Glad to hear you received yours, and like you, I’m worried about the “defect levels” of any foreign made products, too!

Looking forward to hearing how your PF4 install goes!

Woody

[Beach-Burban]

Well, I installed the new MAP Sensor and got the proper readings while connected to the digital gauge screen with the engine off. The engine started right up but ran worse than it had prior to my break-down, however, as I had goofed with the distributor during my time sitting at the curb, the first thing I did when I started it was to return the timing to the required 12 degrees BTDC (as Peter from Edelbrock had instructed me to).

As I dialed-in the timing, the engine ran better and better (in the driveway) but when I actually drove it, it went back to stumbling and popping as before…so I drove about 10 miles then called Peter back instead of driving the entire 50 miles. Peter took me into the “Advanced Tuning” section of the app and told me what initial adjustments to make to the basic Fuel Map. He told me to call him back after another 50 miles…and this time I won’t jump the gun!

The off-idle response is significantly improved, as is the acceleration aspects up to around 40 mph. I didn’t take it on the freeway yet, so I only put about 10 more miles on it as a new (minor) issue has developed…it stalled several times when coming to a stop, unless I rolled very lightly to the stop. I might need to raise my idle slightly, or the slight build up of pressure in the gas tank is dropping my fuel pressure. I need to rectify the venting anyway, just to be sure that this isn’t a problem…but it’s apparent that the “self-learning” needs to have time to make adjustments as well as some more tweaking with the help of Peter.

Woody

[HO455]

Sounds like progress to me. As they say "It's the journey, not the destination". Good work and thanks for posting, we're all learning along with you.

[Beach-Burban]

So it’s been awhile since I’ve made any real progress, but I have been working on my rear hatch…and I believe I just opened a can of worms!!!

To recap: Feeling as though I had a rear hatch that was in pretty decent shape, I removed the glass and inspected the lip to evaluate how much work would be required to reassemble it with the clean glass that member BAD1916 donated to me (thanks Bryce!). I dug out all the rubber bits I had collected preparing for this day, then began cleaning up the lip that the rear glass molding fits on to. It was much worse than I had expected, so I switched over to cleaning the hatch area where the weather seal glues to…and to my surprise, I uncovered a 40 year old repair (estimated by statements that the original owner had made back in 2017). Back then, metal work relied upon body filler (lots of body filler!!!) to make everything fit and appear correct…and they must have done a very good job as it wasn’t apparent that a repair had even been made, but the rot was not treated (or removed) and it just grew and grew until the wire wheel quickly exposed how bad it was! I hadn’t yet seen the area where a metal patch was welded in and about a 1/2 inch thickness of body filler was applied over it…but by that time, I had already came to the conclusion that I would be taking the entire hatch down to bare metal!

The pictures show it pretty well, but I still have the outside of the hatch to strip…so I might have more surprises in store for myself. Time to find a good metal worker!

Woody

There is a fair amount of “Swiss Cheese” going on with parts of the rubber molding’s mounting lip…but the worst area is all along the bottom section where it has the previous repair!


I think I need a metal fabricator as nobody reproduces anything for our hatches!

[Beach-Burban]

Here are close-ups of the outside corner area showing the patch and the same corner on the inside showing the molding’s mounting lip.





Woody

[LockDoc]

-
It's amazing how rusty some parts are in CA. Maybe it spent some time close to the ocean. Anyway, It will take some time and patience to get that dialed in. It sure would be nice if one of the companies produced a re-pop one.

[HO455]

I can't seem to locate it now but there is a member here who has a good write up on replacing rusted metal on the hatch that you may find useful. It was back before the Covid interruption. I'll look and see if I can find it this weekend.

[Beach-Burban]

Originally Posted by LockDoc

-
It's amazing how rusty some parts are in CA. Maybe it spent some time close to the ocean. Anyway, It will take some time and patience to get that dialed in. It sure would be nice if one of the companies produced a re-pop one.

Funny thing is…I was so confident that rust/rot was not going to be much of an issue when I bought this particular Suburban as it lived it’s entire life in the high and very dry desert of Lancaster, CA? What I failed to look at too closely was that it did have some very old accident repairs (that I was aware of prior to the purchase) and that it was used to tow the original owners travel trailer to wet locations such as ocean and forest areas that do have a corrosive impact. It wouldn’t have changed my decision to buy it…but maybe I would have budgeted better with regards to rust repairs?

I live less than a mile from the ocean…and haven’t experienced “salt air” corrosion on our other cars, but our bicycle rims and handlebars sure do rust up quickly, so maybe my living environment has contributed?

Re-pop would be a welcomed addition! Thanks for the input.

Woody

[Beach-Burban]

Originally Posted by HO455

I can't seem to locate it now but there is a member here who has a good write up on replacing rusted metal on the hatch that you may find useful. It was back before the Covid interruption. I'll look and see if I can find it this weekend.

Thanks for the response…I would really appreciate information related to this repair!

My goal wasn’t to go entirely to bare metal, just enough so someone could see what work would be required to repair it correctly. Now my fear is that I won’t be able to find someone willing to tackle the job?

I find myself falling into “project creep”…something I was trying to avoid as I just want to drive and enjoy! Thanks again for your efforts!

Woody

[kev2809]

maybe this is what your looking for? I'm doing the same process and can't stand it! rather find a good used one


https://67-72chevytrucks.com/vboard/...=771928&page=7

[HO455]

Originally Posted by kev2809

maybe this is what your looking for? I'm doing the same process and can't stand it! rather find a good used one


https://67-72chevytrucks.com/vboard/...=771928&page=7

YES! Thank you. For the life of me I just couldn't find it.

[kev2809]

no problem!

ya I flip back and forth to kind of guide me, it's a big help

[Beach-Burban]

Thank you to Kev2809 and HO455 for the joint effort in finding the thread detailing the hatch repair…although now I’m quite frightened regarding the amount of skilled labor involved! I have no skill in fabrication and must now put out the feelers to find someone that I can trust (and afford???). Thanks again, guys!

Woody

PS…and many thanks to KFF 1 for documenting the tedious process he endured so that others could benefit!

[Beach-Burban]

During the last three months, I have been jumping from one project to another (and then another)…and we all know that isn’t an efficient way to get things done! To sum things up, I’ve made no progress with the EFI system because I shifted into the rear hatch issues. On top of that, my woodworking buddy Bob (who is in the process of “sort of” retiring) finished enough of his contracted work to jump on-board with my “Woody-Style” headliner project. With his tremendous amount of knowledge, we have made a lot of progress (but are still a ways from completion). I am committed to finishing the headliner before switching back to the other issues…except for finding a metal worker for the hatch. I have received a lead in the right direction for that…but a friend has to present it to him at the right time so as to not scare him away! In the meanwhile, please except a few pictures of the “in-progress” woodwork!

Woody

Individual panels of American Hickory.


A milled cap covers the gap between the panels.


Working around the overhead A/C cover has been a challenge!

[CG]

That is going to be awesome! Keep at it!