burnout88

After some trouble shooting I am almost sure my EGR temp sensor is bad. I tried to by a new one and have been informed that they are no longer being manufactured for TPI cars 87 to 89.

GM # 14087416 Discontinued, no old stock remaining in the country.
AC/Delco # 212-337 - Discontinued
Standard Automotive # ETS2 - Discontinued
Kem Automotive # 140-223 - Discontinued
Delphi # TS10113 - Discontinued
Pep Boys Borg Warner # EGR301 Discontinued
Autozone Duralast # ET101- Discontinued
NAPA # CRB229130- Discontinued

So now what am I supposed to do? Looks like the check engine light will be on for a long time. So much for complying with emissions.

Chevy8588

iTrader: (1)

auto wrecker i would say, you try napa? usually they can locate interesting pars such as that

Guest

For a small fee (hah) to the lowest priced vendor (hahahaha) the state of CA BAR will refer you to a place where you can get a good used one.

I would have to guess one vendor was supplying them all, probably went under.

Guest

I really did not click twice.

burnout88

Yup, I tried NAPA and Carquest also. Still no luck, I updated my post with the NAPA #. The cars in the wrecking yards here are so hard to find that are not destroyed or with 1 millions miles on them. I guess I have no choice but to try a used one and hope it works.

I can't believe I have been defeated by a $20.00 part.

Chevy8588

iTrader: (1)

they are so small, put em in your pocket, but in all reality its just a thermo resistor that grounds to the EGR case, so my thoughts would be lets see if we can find a similar setup like a coolant temp sensor from a different vehicle and adapt it to ours?

tony_cogliandro

iTrader: (3)

did you try e-bay?

Kodfish

iTrader: (1)

The EGR temp sensor is also called the manifold air temp sensor I thought, and they have them on autozone.com Part # SU109. You are referring to the sensor under the intake plenum, correct? If so this is your sensor

Chevy8588

iTrader: (1)

no there is a sensor in the base of the EGR valve, looks almost like a little O2 sensor, thats what he needs

burnout88

OK, I tried Ebay, still no luck. And no it is not the air intake temp sensor. It is a sensor that screws into the base of the EGR.

I think Chevy8588 has a good idea about trying to adapt one from another vehicle. If anyone can find one that is similar in design but maybe has a different plug or something please let me know. This link on the NAPA site has photos of what it is supposed to look like.

http://www.napaonline.com/masterpage...erature+Sensor

Chevy8588

iTrader: (1)

Ok i just took a look at the circuit Diagrams for the EGR system, the EGR temp sensor is just a switch that opens and closes with heat, so when its heated to a proper point you should get ground @ the wire coiming out, ALSO the wire that comes ut of that sensor SHOULD screw in or unscrew, try tightening the wire in after checking to see if it grounds when the EGR is open. also if this does not work i wonder since it is a thermo reactive switch, if the coolant fan switch from our cars might work, just a thought, it does the same thing obviously.

burnout88

Do you happen to know what the heat range is that it grounds the circuit and the corresponding resistance? Do you think I could wire in a resistor to just ground the circuit all the time to just get the check engine light off?

Chevy8588

iTrader: (1)

i do not, but its not as simple as that. the EGR valve opens ans closes MANY times, and that sensor tells the ECM that the valve is working and there is exhaust flow, but i would think that if that line were grounded constantly it would trip a check engine light thinking the EGR is stuck open, speaking of which you never told us the issue at hand here, why do you think the sensor is not good? what is happening, what have you tried? and what code(s) are set?

burnout88

Classic code 32, checked the valve itself with a vacuum pump and it is not sticking at all. Appears to work fine. Solenoid also has vacuum. The car has no drivability problems. Runs great!! But at cruising highway speed after the car is warmed up I get the code 32 and again no drivability problems. The ECM thinks there is a problem with the valve but there is no actual problem with the valve. Which leads me to the only part that talks to the ECM. That sensor.

Chevy8588

iTrader: (1)

under cruise conditions the solenoid energizes and opens the valve. if the solenoid is not popping and allowing vacuum to the valve, it doesn't open... meaning no heat transfer to the temp sensor.. no signal to PCM. code 32 sets. with the engine running open the valve by hand, if the engine bogs or stumbles, or idles down then the passeges are clean. next follow these diagnostic charts, i think your problem lies in the solenoid rather than the sensor itself, get a power probe or test light, check your sensor and see if you have ground, if you have ground before the engine is started then your sensor is fuxxed, if not fire the car up idle her up a bit and use your vacuum pump to open the egr valve and hold it open, then probe the connector on the valve and see if you eventually get ground if you do then your sensor is good, if not, then again, fuxxed. this condition would lead to me believeing the solenoid being dead. never seen one of those sensors go bad, but i HAVE seen the solenoids go. this can be done with simple tools, and since you can energize the solenoid buy grounding th ALDL you can check it's operation as well, if the sensor IS bad we can go from there.

Chevy8588

iTrader: (1)

how's it coming?

I H8 WWD

iTrader: (5)

I know its hard to search, so I decided to take 30 seconds of my life to find one brand new in stock for cheap. Not ragging you guys, just searching for me is like breathing that's all.

$14
PacVette

Another for $23 (Scroll 1/4 way down)
CompNine

burnout88

If you call them won't have it in stock. They have to order from a distubutor. The one site actually lists the AC/Delco part number. When they contact the distubutor the retail and online stores are informed the part is discontined and not available. The part went extinct in Feb. of 2009 only 5 months ago and most of the online stores and retail stores still list it. NAPA even still shows it on there site. But no one can actually get it. I only listed half of the places I tried. Trust me it's gone!! But thanks for checking .

Chevy8588

iTrader: (1)

hey burnout, have you tried trouble shooting it at all?

burnout88

I live in Phoenix. The temp here has been averaging 114 to 116 degrees daily. We are cooling down to 108 this weekend so I might try to get outside then and check it. It's really hard to work in this heat and it can be flat deadly if you are in the sun for too long. The desert is an awesome place to live but this time of year it is brutal.

Chevy8588

iTrader: (1)

ahh yea didnt know that. i can see why that would be hard lol, hopefully its just the solenoid though :P

burnout88

I hope it's just the solenoid. The part is more common, just got to hope for a cooler day to get outside.

Chevy8588

iTrader: (1)

yea the solenoids are easy to get, though i do think we need to work on finding an alternative to the switch for our fellow thirdgeners, its rare part to go bad obviously since its discontinued. but it does happen from time to time. and anything you need for your car just ask, i'm an Ex GM tech (damn economy) so I still have access to diagrams, repair info, schematics, you name it, i probably have it

burnout88

Solenoids are now discontined. Have been checking all day. They cannot be ordered and are not being manufactured. Even tried cross referencing with different cars where just the bracket is different. Still nothing.

Chevy8588

iTrader: (1)

ok wel that should not be such an issue, my cadillac uses a EGR valve similar to the camaro, so similar that i actually use the gasket from my caddy fo the EGR valve, so lets seeif we can adapt the caddy's solenoid to ours, it is still available too.

Chevy8588

iTrader: (1)

its a 1995 cadillac deville with the 4.9l by the looks of the valve, the vacuum routing is a TAD different but should serve the same purpose, and your car being an 88 the solenoid should actually plug right in lol

gurkgurkgurk

if you still need the part. i can ask the local shop where i go to. i just got that same part a month or two ago. id be glad to call them up for you and see if they can somehow manage to get one for me. all youd have to pay is the shipping if they end up getting it for me.

87bucketgta

I need one myself, does anyone have any suggestions or any help, this really sucks, cant beleive noone makes this part. WTF!!!!!

Chevy86 IROC-Z

iTrader: (17)

All you need is a lil perservierance (I think I spelled it wrong, but hey, I dont care, Atleased I know how to search for things on the net!). by the way burnout88, NAPA didnt discontinue it, maby at the store, but its online here at this link (http://www.napaonline.com/masterpage...d=4&SubCatId=7) and hit page #2, WOW!!!!!!!!!!!!!!!!!!!!!!! What do you know, Your item of "NAPA # CRB229130- Discontinued" is actually there as the second listing. Never give up homie. they are out there. Just dont give up. Dont shut yourself down. If you dont make it a mission to find something, youll never find it. Think outside the box, not in. Good luck dog.

87bucketgta

Na I tried to order it this morning!! Took my order and everything but sent me an email within a few hours saying the item was back ordered. So no luck there

Chevy86 IROC-Z

iTrader: (17)

, I would file a false advertisment report to the B.B.B.. That's to falsly advertise something that aint even there. S**t, Im going to order from the other shops just in case I need one in the future.

Chevy86 IROC-Z

iTrader: (17)

Hey burnout88, We share the same damb heat. I live in CA. Just 45 mile away from Yuma AZ. I feel you dog. We get the same 110 plus Temp. We also get like 99% humidity levels because of all the irrigation to the damb alfalfa fields. You aint alone G? Im working on my 86 IROC-Z at my grandma's house and let me ask you, Have you drank with someone almost 5 gallons of Yosemite while working on your car all day in 110 degree weather? It s**ks bro. It really sucks. If you find that senser (egr temp) let me know so that I can buy one myself. Peace.

Chevy8588

iTrader: (1)

back order does not mean unavailable, it means not enough to supply the demand. also burn out, did you run through those diagnosis insructions i gave yah? is it definately the temp sensor? same for you chevy 86, i gave burnout some diagnostic information earlier to make sure his issue is def. the temp sensor, lets figure this out, im still searching for temp sensors, got my guys searching around, there has to be one or two laying around here.

87bucketgta

If anybody hears of anything please let me know, My sensor just kinda fell apart. So im stuck

Chevy86 IROC-Z

iTrader: (17)

Fell apart? You mean the wire snapped off at the sensor? iF that occured, try finding one at a junkyard. Maby you can solder it carefully? If all else fails, you may have to do a EGR delete and that costs money because someone would have to delete it from your PROM because if you remove the whole EGR system, you'll set off your Check engine light. I dont know if itll affect the camaro's performance but it would be your last resort if everything else fails (discontinued part).

StevenB L98/LS1

chevy 86 is right man, napa is the only place that can still get the solenoid, im ordering mine soon, as thats the problem with my egr at the moment, common problem with our cars other than the egr itself going out.

burnout88

When you try to order the solenid from NAPA they will tell you they cannot get it.

I have not run through the tests yet. It just keeps getting hotter and hotter out. And I have become annoyed that I can no longer get any of the parts. So even if I run through all the tests in this heat I still can't actually fix it. The 4.9 caddy soleniod looks like it might work but will have to redo some of the vacuum lines and maybe the connector.

Chevy8588

iTrader: (1)

the vacuumn lines are actually similar, in and out, then that foam piece is exhaust, the connectors looks exactly the same, ill pull mine outta the caddy and test it out

burnout88

I have been trying to look at photos online to determine if the connector is the same but just cannot tell. If you can do an on car test that would be great. I don't want to have to go to a junk yard and try and find a connector from a deville. Not alot of those cars left. In fact have not seen one in years out by me.

burnout88

I would be more then happy to pay for the part and shipping. Go for it and let me know.

Chevy8588

iTrader: (1)

yea ill test the connector out on it cant run it on my 85 yet (engine's outta the car), but i can probably try running the TPI one on my caddy and see if it works. like i said plug looks the same. and that valve was used all the way back in 90 with the 4.5 cars too, you can find it in any 4.9l or 4.5l eldo, seville, or deville. which makes things much easier.

Chevy86 IROC-Z

iTrader: (17)

gurkgurkgurk, Chevy8588, If you get a hold of any EGR Temp Sensors, Ill be more than happy if you can provide me with some help so that I can aquire one too if you can get em. Peace.

Chevy8588

iTrader: (1)

ill give my guy a call tommorow, he's never let me down before with finding parts on some REALLY old Elgin sweeper equipment, so i would think an EGR temp sensor would be a breeze for him

Chevy8588

iTrader: (1)

ok guys i have been researching this for a few days now and i think i have found a way to make this work for you with vacuum... take the wire out of the EGR temp sensor and splice it into a vacuum operated swicth that goes to ground when vacuum is applied, we splice this inline with the vacuum line to the EGR valve with a vacuum delay valve inline before it. thisway when vacuum is applied to your EGR valve vacuum is also applied to the vacuum operated switch, the inline vacuum delay would simmulate the warm up of the swicth and then move the vacuum switch to the closed position grounding the terminal and sending a signal to the ECM telling it the valve is open and operating. http://www.powersportsuperstore.com/.../tr21-5200.htm that is a link to a vacuum operated switch i found online, thogh your local napa should be able to find one as well, and your local parts store should have a vacuum delay in stock as well, usually in the HELP! section, as long as your valve is good this will work just fine without hurting performance, if your solenoid is NOT working, then this will still offer diagnostics!

Chevy8588

iTrader: (1)

hello gents, I am back one more time to tell you that the cadillac EGR solenoid WILL interchange! it is a direct plug in, you should even be able to mount it on your bracket perfectly, the only difference is the position of the vacuum lines on the solenoid itself, I have successfully tested and operated a camaro TPI EGR solenoid in my cadillac, cruised all day with it, opened and closed it with diagnostics mode and all. we CAN use the caddy solenoids.

87bucketgta

Im confused alittle, so if we use the cadillac solenoid we can do away with the temp sensor in our cars??

Chevy8588

iTrader: (1)

no, the cadillac solenoid can be used if your solenoid is bad, solenoids are discontinued, read the post on my way to do awqay with the temp switch

87bucketgta

Gotcha, sorry about that, I need the sensor which is in the same boat. ahhhh!!!!

Chevy86 IROC-Z

iTrader: (17)

So then I dont need a EGR with the EGR Temp sensor right? All I need is the caddy EGR temp right? The caddy doesnt come with a temp sensor right? WWWWWWOOOOOOOWWWWWWW. Boy am I confused. A vacuum switch to replace the EGR Temp switch. Maby too much to ask for but could you draw a picture or a diagram to show what connects into what? Im severly confused. Your method sounds like I would like to do it your way but, I need to better understand whats going on before I make the mods.

Awesome-X

He doesn't say anything about doing any mods to make this work, all he said is that the caddy sensor (the same sensor that you guys are looking for except its in a caddy) will work in our cars as well. So get that part for the caddy and put it in your camaro, and you'll be set.