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1990 740 GLE
I just wanted to relay 2 stories that have happened to me in the past few months. About 5 or six months ago my O2 sensor went bad. I bought a new one from Kragen auto and replaced it. The car still did not run right, tripped the check engine light, didn't pass smog, etc.
ready to pull my hair out, i took it to my local, very good, volvo mechanic and they did what i did, replaced the O2 sensor. car ran great, passed smog, etc.
I thought this might have been a fluke, but a similar thing happened again today. got error codes for ETC sensor a couple weeks ago, went out and bought a new sensor and replaced it but that did not fix the problem, in fact it only seemed to get worse. much hair pulling and many theories later i give up and take it again to my trusty volvo mechanic, who, you guessed it, replace the ECT sensor and the car runs great!!!!
so in 2 cases the part given to me from the parts guy at the counter has been wrong.
so, i just wanted to relay these stories and see if any one has had similar problems. i may be a complete idiot and can not install a sensor into a car, but i'd like to think i am bit better a mechanic than that...
also it seems to me that from now on i will have to double check which part those guys at the counter are giving me and not just assume that they are pulling the right parts.
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Or just call the folks at www.fcpgroton.com they have the right parts and mistakes are rare which they correct quickly
--
-------Robert, '93 940t, '90 240 wagon, '84 240 diesel (she's sick) , '80 245 diesel, '86 740 GLE turbo diesel, '82 Mercedes 300SD for sale
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If your '90 700 has the Bendix Regina FI system, the O2 sensor is unique, and the usual Bosch type will not work. The Regina sensor uses a different material and method of O2 measurement. Search on "titania". (The Bosch type uses zirconia.) There are many previous posts on this subject.
As fo the ECT, it's the same for both FI systems as far as I know. But there are differences based on year of car.
--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.
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Echo that...
If your 740 is a non-turbo Regina car, you need to keep in mind that when go buy parts, that the vast majority of 740's were Bosch cars. So be prepared to read between the lines when they look up the parts in their catalogue. When buying fuel system parts for a Regina car you may want to have them look up the number for a 94 non-turbo, because you should see a lot of commonality there.
Here's an example: I called my local parts store (Advance Auto) to see if they had the fan belts for my 8-valve 1990 740. The voice on the other end asked "Is it a turbo?" I thought for a second "What difference is there?", but simply appeased him with the answer "No." He said he had the belts, so I went by, picked them up, and took them home only to find out they were too long. Back to the store I went. This time I watched over his shoulder when he looked up the number and again asked "Turbo, sir?". Looking at the computer screen, that is when I realized his choices were only two - "16-Valve" or "Turbo". Probably out of habit he asks the "Turbo question" because most customers are likely to know if their car is a turbo before they would know how many valves it has. Like I said, be prepared to read between lines and also be prepared to tell them their catalogue is a little bit screwed up.
By the way, I'm not slamming Advance Auto. As far as local chain stores go, they are one of my favorites. I have generally gotten what I expected from them at a reasonably price. Of course for good Volvo parts, there is no substitute for specialty houses like those that advertise on this site.
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posted by
someone claiming to be art
on
Tue Feb 1 07:21 CST 2005 [ RELATED]
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I think I caught a whiff of "universal" reading someone's story of getting a replacement coolant sensor. The LH2.0 and LH2.2 sensors are blue, having one element not internally grounded. The LH2.4 and presumably Regina sensors are black, having two elements, with a common internal ground and a higher price tag.
As the thermistor elements are the same type in both, the black sensor would work in the blue application, just not the other way 'round. Makes for less items to stock, and more money to be spent.
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Be sure to complain,their cataloging may be wrong! The problem will never get fixed if no one complains.
Product planners won't make any changes until a problem is brought to their attention.
They also would be liable for any labor.
Of course the counterperson could always be a "dummy"!
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posted by
someone claiming to be Barongrey
on
Tue Feb 1 06:52 CST 2005 [ RELATED]
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Ya think so?
In the 'old days' a parts counterman had to know a LOT about cars & trucks. Parts were listed in catalogues, and he/she had to know where to find which part, and also how each part worked.
Ever since they put in computer databases and started hiring people according to how well they could push buttons vice how much they knew about cars, the whole industry has gone to pot!
I always make sure that I take in the old, non-functioning part if it's anything that's more than basic nuts and bolts. At least I can compare it to the part they think I want!
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posted by
someone claiming to be frankford
on
Mon Jan 31 20:56 CST 2005 [ RELATED]
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that happened to me until a third time I realized the real problem was a bad radio supression relay-wiring. I even went off on the parts manager. Now I just think outside the box with these cars.
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i am going to go to the store today with the receipt from my mechanic for the ECT replacement, bring the one they gave me back and see what happens. at least i should get my 30 clams back...
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