When driving my car I can't accelerate normal , I have to ease into it very gentley or the falls on its face. I'm guessing it's starving for fuel. Would this be caused by bad injectors or bad fuel filter or is it somthing else maybe?
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When driving my car I can't accelerate normal , I have to ease into it very gentley or the falls on its face. I'm guessing it's starving for fuel. Would this be caused by bad injectors or bad fuel filter or is it somthing else maybe?
A good bet may be that your filter screen in the tank may be getting clogged, or the fuel line is collapsing. Does the pump "moan" when you try to accelerate?Quote:
Originally Posted by DMC81
There are lots of possible causes - but this is fairly common.
Also, park the car - start the engine and open the engine cover. Rotate the throttle spool by hand and see if the exhaust smells of unburned gas. Make sure the Catalytic converter is not glowing red (easier seen at night with the lights off temporarily). Does youe exhaust system hiss? Does the car idle poorly? Have you had any work done recently?
T
I have only had it a short time, lots of bugs to work out still. I don't hear the pump making any out of place noises but I never thought to try the spool. It does have a slightly rough idle tho. Can injectors cause this?Quote:
Originally Posted by TTait
I had the exact same problem several years ago after my car sat for 10+ years.
It was injectors.
I could ease my way up to highway speeds if I did it gradually but if I tried to floor it or even accelerate quickly, it would just start this powerless gurgling. I fought with those injectors for a year, cleaning them regularly with a sonic cleaner but in the end I just replaced the injectors. Never had a single problem afterward.
Using sonic to clean injectors that open on pressure will never reach the goal.Quote:
Originally Posted by Nicholas R
This type of injectors can only thoroughly be cleaned in a system that uses pressure to open the injectors.
Besides that, longtime unused injectors get bad spots on the seats, due to rust.
If that has happened, replacement of the injectors is the only cure.
I agree.Quote:
Originally Posted by WelmoedJ
Rust can get inside them and you will never get it out. You can stick a 30 AWG wire in the tip of the injector to keep it open during cleaning but as I said.....Rust is the killer.
Quote:
Originally Posted by Nicholas R
Thanks Nick, Thats what I was thinking but I wanted to ask you guys first. Where would you guys suggest I get the injectors from DMC, Johns or some where else?
Hey Mike,
Your car is a stick shift, right? The VIN registry indicates this, but was just double checking. I'd say the guys above with experience with injector problems are probably right. Before I saw their messages I had thought it could have related to a failed auto trans shift computer governor. They fail in bizarre ways so this might have been one of them. If you have a manual car then of course this wouldn't affect you.
Jonathan, correct it is a stick shift. I think I will go with the injectors plus they are the originals I think, so its long over due to replace them. lol Thanks buddy.Quote:
Originally Posted by Jonathan
Does it only do this cold or all the time?
Has it always done this (as long as you've had it) or did it just come on suddenly?
There are may things that can cause this, with more info we can narrow it down faster instead of throwing lots of expensive parts at it to test it.
Dave, it has done this since I have had it. Cold weather or warm and it does it even once that car is up to temp.Quote:
Originally Posted by DMCMW Dave
Definitely fuel. Could be injectors, fuel distributor, or warmup regulator. You'll need some test equipment (gauge set) to know for sure, but the quick test is to do the injectors- in-bottles test that's been explained here (I think, if not say something). I'm betting on injectors as others have mentioned, but I've seen the FD cause this as well.Quote:
Originally Posted by DMC81
Before you start swapping injectors though make sure the tank has been antiseptically cleaned, new filter, new accumulator, etc. or you will just plug them up again.
Dave,Quote:
Originally Posted by DMCMW Dave
Thanks for for the info as always! The tank was cleaned right before I got the car but I'll check it to make sure there is no gunk in the tank still.
Who has best price on injectors?
I believe Rock Auto still sells them for around $40 if you order them under an 86 Volvo 760; for some reason they're $66 if you order under DeLorean.
The Bosch 0437502022 PN is what was stamped on all my injectors.
Quote:
Originally Posted by DMCMW Dave
You can't go wrong buying them from someone helping you solve the problem :)Quote:
Originally Posted by DMC81
+1 Dave and Julee do a great job on parts and advice.Quote:
Originally Posted by Jonathan
I am amazed by all the people on this site that take the time to give there input on so many subjects. So on that note a big thanks to all of you, you guys are great!Quote:
Originally Posted by cybercusp
That's right. DMCMW will sort you out.Quote:
Originally Posted by Jonathan
As pointed out a lot of things can cause this symptom. On one car the frequency valve was not working. All it took to fix it was to take the plug off the valve and put it back on several times to clean up the dirty connections. You can't properly fix this by throwing parts at it. In the process you will be taking off a lot of good parts and may actually fix the problem by disturbing the actual cause and not even know it. You will, of course, believe that whatever part you replaced at that time was faulty and now it fixed it! Go see of the frequency valve on the right valve cover is buzzing. While you are looking, see if there is a plug in the mixture screw hole.
David Teitelbaum
David,Quote:
Originally Posted by David T
I will look it over tomorrow and see if I hear anything also check the connection. I was thinking it wouldn't hurt to replace the injectors regardless, I'm not sure but they look original. Thanks for the advice.
I say this on a day where they announce lay-offs of 1,500 or so workers from Sears Canada, Future Shop and Best Buy. What I am getting it is the way a lot of us do our window shopping in the brick and mortar store in your neighborhood, but then after finding out which one we want to buy, go find it on the Internet for cheaper.Quote:
Originally Posted by Jonathan
The dollars and cents might make sense, but it can't come as a surprise when the local place in town closes up. I have a couple pharmacists in my family and that industry sees the same thing. Go get your health advice from the local store with the guy who communicates well, but then turn around and take your business to the corporation type store because their dispensing fee is $2 less. Hard to keep a float if that extra effort you put in doesn't equate to people buying stuff from you.
I for one began using Dave and Julee because it was the closest vendor I knew of to where I live here in Canada. I continue to buy basically all my parts there because I value the time and effort they put into helping me. We all know who the forum members are on here that log in at all hours helping us with our cars. Their usernames don't often say CanadianTire or AutoSource or RockAuto.
I happen to buy a lot of my stuff from Midwest, but if you are getting a lot of advice and help from Josh, or Grady, or John, or Houston, or wherever, then I would encourage you to keep buying your parts from "your guy" if the difference in price is marginal. The businesses dedicated to DeLoreans don't have the luxury of selling ladders, or shop vacs, or generic GM light bulbs like some of these other places do. I buy as much as I can from them that goes into the DeLorean to try and do my part to keep them doing their thing.
Quote:
Originally Posted by DMC81
While it won't hurt to replace the injectors anyway - you really probably want to figure out what is wrong and address that problem specifically first. Throwing money at the problem is a good way to start resenting your new car.
Run back through the thread and make note of the tests and questions everyone has posed. The only test here that will cost a dime is the fuel pressure gauge tests - and you can sometimes borrow the kit from one of the vendors. You cannot borrow it from Rock Auto however.
Narrow it down and work the problem one step at a time - you will learn a bit more about the car that way. As has been stated here, if you just throw in injectors, you could ruin them too.
This is not the last time you will have to troubleshoot the car - do the tests and checks one at a time, in whatever order you can, and come back with the results. You could check about half the things suggested herein in about 10 minutes total, and you will get a lot more good information. Lots of folks here happy to help. Its a great place to learn the tips and tricks that will get you home when your car won't start at 2am on a saturday and both this forum and rock auto are far far away...
Also, learn about the pros and cons of each of the vendors (or in the case of Dave, keep an eye open for an eventual 'con' because some day - eventually - he might make a mistake - maybe - but history so far has not revealed one). Some of them give great advice, some of them you get... advice, and some of them you get a box of parts, eventually, with a few items missing, and its your fault. Support those who support you and your car will bring you many miles of happiness.
Tom
Tom,Quote:
Originally Posted by TTait
Thanks for the advice, I am going to run through the things everyone has said to check and then go from there. With three young kids I cant afford to waste money guessing..lol Unfortunately I'm going to wait another day or so before I check, it is so cold right now and I do not have a heated garage.
With 3 kids - you kind of know the drill already - because there is a parallel between fatherhood and Delorean ownership.Quote:
Originally Posted by DMC81
The first year can be tough and challenging with either, but like kids, it gets better pretty quickly in years 2 and 3. My nine year old son, and the D I've had for 8 years are both pretty under control now, and I have a pretty good idea how to deal with any crisis either can present.
Now, that said, the second D which is only 5 years old (to me) and my 14 year old daughter do both give me a little more trouble than their counterparts - but I suspect they are both girls... so that's to be expected I guess.
When it warms up a little let us know what you find and it can all get sorted out.
Tom
PS - You do understand that whatever you do, its never really going to accelerate fast - right? ;-)
You got me laughing good on that last line..... "PS - You do understand that whatever you do, its never really going to accelerate fast - right?" Unfortunately yes I do know this but I didnt want a fast car....yet. I would love to get a Buick Grand National next. I know it's not super fast but it's a damn sharp car. Thanks again for all the kind words and advice Tom.Quote:
Originally Posted by TTait