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v6 egr control solenoid??? by GDC88
Started on: 11-23-2018 08:32 PM
Replies: 10 (199 views)
Last post by: GDC88 on 12-01-2018 04:34 PM
GDC88
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Report this Post11-23-2018 08:32 PM Click Here to See the Profile for GDC88Click Here to Email GDC88Send a Private Message to GDC88Edit/Delete MessageReply w/QuoteDirect Link to This Post

Just got a code 32 and a code 34.

Everything works fine except after 10 minutes or so on the highway at 70mph, the check engine light comes on. Stop and restart the car an all is well. I can drive around town and no light until I hit cruse mode on the highway. Did a little reading and discovered it could be the EGR control solenoid. It could be as simple as a vac line too but I'll sort that out later. So just out of curiosity I went looking for the cost of a new control solenoid and there are none except a guy on eBay who wants $560. If mine is bad, can it be fixed? Is there a resource I'm missing for a replacement?


Thoughts?
Greg

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Dennis LaGrua
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Report this Post11-23-2018 09:10 PM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post

A lot of vehicles used EGR solenoids like the Ford F150 of he 1990's and they are inexpensive. . I see no reason why they cannot be used on a Fiero.

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Report this Post11-23-2018 09:59 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

From Fiero Parts Interchange Manual:
http://www.fierosails.com/PartsManual.html

EGR SOLENOID
http://www.fierosails.com/EGR.html

The 2.8L engine has an EGR solenoid which is actuated by the ECM to open the EGR valve. The EGR solenoid is mounted on an engine bracket near the battery and the EGR valve is mounted on the exhaust pipe near the distributor. The solenoid is unique to the Fiero and was not used on other vehicles. The part number is AC Delco 214-361 and is generally available, although pricey. We understand that EGR solenoids from late '80s S10 trucks can be substituted but since they are not same mounting or configuration, some "engineering" is required.


.How to test the one you have is here:
http://www.fiero.nl/forum/Forum2/HTML/045528.html




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[This message has been edited by fierosound (edited 11-23-2018).]

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GDC88
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Report this Post11-24-2018 07:56 AM Click Here to See the Profile for GDC88Click Here to Email GDC88Send a Private Message to GDC88Edit/Delete MessageReply w/QuoteDirect Link to This Post

Fierosound, thanks for the links. Better info than I originally found.

Not new to Fiero but I've been away for about 28 years. Had an '85 for a few years way back when and recently bought an '88 GT about a year and a half ago. It and I will be in the garage today listening to music together and looking at the vac lines and testing the solenoid. I did look up the vac solenoid for an '88 S10 with the 2.8l motor and it looks to be an easy install. Best part is that they are available and about 1/6 the cost of the one on eBay. One question though, while S10 has a 4 pin connection, it only has the two vac lines that go to the intake and the EGR. What about the vac line that goes to the air cleaner? Just not necessary?

Thanks,
Greg

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fierofool
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Report this Post11-24-2018 09:03 AM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageClick Here to Email fierofoolSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post

Before assuming that the solenoid is bad, look at the less expensive EGR valve, itself. To test it, if you have a MightyVac tester, pull a light vacuum on the valve to see if you have bleed-down. If you don't have a tester, pull the vacuum line from the nipple, and with a cold engine (so you don't burn your fingers), press up on the diaphragm from underneath. Cap the vacuum nipple with a finger and while keeping your fingers in contact with the diaphragm, note if the diaphragm leaks down. It could simply be a hole in the diaphragm. You can test its vacuum line for leaks in the same manner by disconnecting it at the other end, depress the diaphragm and cap the end of the line.

That little loop of plastic line on the solenoid can be a source of your code, too. The rubber sleeve is probably rotted and can leak. I replace the little sleeve with some vinyl aquarium tubing and have also used the tubing to make a connector joint where the tubing is broken, and I've even replaced the whole piece of plastic tubing with the vinyl tubing.

[This message has been edited by fierofool (edited 11-24-2018).]

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GDC88
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Report this Post11-24-2018 02:41 PM Click Here to See the Profile for GDC88Click Here to Email GDC88Send a Private Message to GDC88Edit/Delete MessageReply w/QuoteDirect Link to This Post

Fierofool, took your advice and tested the EGR while I was playing around in the engine bay. Pulled a vacuum on the EGR nipple and it opened and stayed open. So I got that covered. Also checked the small loop on the solenoid and it was good.

I did find a loose hose from the solenoid to the air cleaner. The one that sticks out by itself and goes around behind the motor. It wasn't detached but it was barely on. It's also a piece of fuel line. I'll be replacing that with some nice vacuum hose. Also found the rubber 'T' that is connected to the intake manifold behind the MAP in kind of bad shape. Only half pushed on with some cracking showing at the opening that connects to the manifold. I'll be looking for some mew Vacuum bits to make sure this is all good.

My main concern about the solenoid valve wasn't' that I think it's bad. I was just expressing concern if it does go bad and there are no replacements...……..then what?

Still interested in feedback on the S10 solenoid. It doesn't look like it has the hose to the air cleaner and wondering if anyone has done it yet.

Thanks,
Greg

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Rexgirl
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Report this Post11-24-2018 03:40 PM Click Here to See the Profile for RexgirlSend a Private Message to RexgirlEdit/Delete MessageReply w/QuoteDirect Link to This Post

This possible replacement appears to have a built-in filter, so no intake line to the Fiero's air cleaner would be needed. Still, it would be a good idea to compare the new unit's coil resistance to the original's before fitting it.
It would be interesting to see if this unit would be a good replacement for our older part..

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cswillson
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Report this Post11-24-2018 06:24 PM Click Here to See the Profile for cswillsonSend a Private Message to cswillsonEdit/Delete MessageReply w/QuoteDirect Link to This Post

The CEL isn’t necessarily set because the EGR isn’t working but because the (very expensive ) controller isn’t working.

You can run a vac line directly to the EGR if you feel the need. You’ll still get the CEL, but for the most part you’re doing all you can do considering you’re driving a 30 year old car with replacement parts more expensive than the resale value of the car.

I’ve done every variation of reroute, replace, redo there is and couldn’t detect any difference in performance, but the CEL comes on after some period of time.

I took out the defective controller and just rerouted everything. I get the light but put my Bluetooth mic over it and just enjoy driving my SE.

The earth is not going to come to an end because my EGR isn’t perfect.

Check my sig before you take my advise.

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GDC88
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Report this Post12-01-2018 08:03 AM Click Here to See the Profile for GDC88Click Here to Email GDC88Send a Private Message to GDC88Edit/Delete MessageReply w/QuoteDirect Link to This Post

Just a quick update. The Fiero Store will sell me a refurbished, tested etc. EGR Solenoid for less than half of the one on eBay. Jeremy and the guys there were easy to deal with and very accommodating. Great guys.

I know, I know, lots of folks can ignore the check engine light or even remove the EGR with block off plates but I can't. It's a personal thing, but for me, everything on my car should work like new and that includes the EGR system.

Thanks all for your advice and comments.
Greg

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fierofool
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Report this Post12-01-2018 11:12 AM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageClick Here to Email fierofoolSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post

Is that Jeremy at The Fiero Store or Jeremy at The Fiero Factory?

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GDC88
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Report this Post12-01-2018 04:34 PM Click Here to See the Profile for GDC88Click Here to Email GDC88Send a Private Message to GDC88Edit/Delete MessageReply w/QuoteDirect Link to This Post

DUH!

Yes, The Fiero Factory. Glad someone's paying attention.

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