HELP! I've spent over $3000 trying to fix an acceleration problem on my 99 Chrysler Sebring Convertible. New Distributor Cap and Rotor, new computer, new Catalytic Converter, wires and plugs, new O2 sensor, timing belt replaced and adjusted, and still no solution. Chrysler mechanic believes it's an issue with the vacuum in the engine and the issue is an internal engine problem, so they want to start taking apart the engine, but I'm afraid to spend more money and still not have a solution. Car really drags when accelerating. When hooked up to computer, fuel injector indicator (I think) registers 54 and then jumps to 276 and then back to 54-- nothing in between. Can anyone at all help me out? I fear getting hosed because I don't know a lot about cars.
2006-11-04 12:13:05 · 7 answers · asked by mclandad 1 in Cars & Transportation ➔ Maintenance & Repairs
i own a repair shop,and i think your fear of getting hosed has already happened it doesn't take 3 grand to repair that problem, i have had them in the shop before with the same problem before ,and i usually can find and repair it for less than 500 bucks,and i don't think its an engine problem,i think its a fuel problem maybe a line closed off on it,,its too late for you to try and save money because 3 grand that's un-heard of ,first off you need to find a different mechanic ,and then you need to make sure that they understand nothing is to be done unless they can guarantee that its going to fix the problem with it.basically you just got took big time,if i had tried that i wouldn't be in business right now,good luck with it,i hope this help,s.
2006-11-04 12:24:49 · answer #1 · answered by dodge man 7 · 0⤊ 0⤋
Hey there,
Well, sounds like someone is guessing there way through a complicated diagnosis. I hate to see people get whacked like that, and its highly unlikely you needed all of those items.
I think you may be barking up the wrong tree with the internal vacuum problem. A technician should be able to correctly identify that with the scan data and a smoke machine pretty quickly. Heavy hesitations under load are not going to be related to engine vacuum anyways due to equalization of the intake manifold at wide open throttle.
The reason the pulse width jumps to 276ms is because the computer is trying to lengthen the duty cycle of the injectors under load. When a quick snapshot is done at the PCM the pulse with is lengthened like an acclerator pump in an old carburetor. Its tough to say what kind of scan tool he is using but I have 5 at my disposal including the DRB2 in which is a factory scan tool. At best the baud (communication) rate is slow enought with a scan tool that by the time your reading it on the screen the event is already happening. Using a graphing meter or scope at the injector harness is the only way to correctly test pulse width modulation quickly.
That being said, a low amp probe on the fuel pump feed wire can tell you columns with regards to fuel pressure without being obtrusive. I dont see any test results for fuel pressure or fuel volumn and I think that would be a good direction to go. YOu hve looked after secondary igntion, fuel trim, engine management (PCM) and I think that you should be leaning towards fuel supply at this point if you havent already.
Tell your mechanic to monitor the fuel pump waveform and see what is happening with regards to fuel pump RPM and Amperage. This vehicle has a closed loop fuel control with a pressure regualtor. I have seen pumps/filters/regualtors go bad and cause a very similiar drivability symptom.
Most internal vacuum problems will affect idle quality, fuel consumption and check engine lights. Contact me with more specifics on the vehicle and I can guide you through an accurate diagnosis.
waynehowie@rogers.com
2006-11-04 12:46:08 · answer #2 · answered by Wayne H 2 · 0⤊ 0⤋
I have a 2000 Grand Voyger Van with the 3.0 V 6 engine with the same problem.During acceleration it fills like something is holding it back and when you get up to crusing speed you fill something like a misfire every now and then. I have pretty much had the same repairs made to it and still have the same problem and seems no one can figure it out. When its put on dianostics machine it shows no codes or problems everythings checks ok. Im lost, if you figure it out let me know @ billyrhall@yahoo.com I will do the same for you.
2006-11-04 12:32:49 · answer #3 · answered by HD FXDL 2 · 0⤊ 0⤋
Just to let you know Chrysler's SUCK! They have had so many recalls, and this problem of yours is probably one of the latest ones. In fact someone i know who has a Chrysler town and country had it burst into flames because the oil tubing was made to narrow and couldn't get to the engine resulting in a friction fire. Junked the car and got a new one (probably with the same problem).
just take a look at this site and it will explain everything.
2006-11-04 12:25:28 · answer #4 · answered by gamerx66x 2 · 0⤊ 1⤋
Why should they fix it when you keep paying them thousands of dollars to not fix it? Good God. You're getting hosed because you reward the people hosing you.
2006-11-04 13:28:06 · answer #5 · answered by Nomadd 7 · 0⤊ 0⤋
They paintings you so complicated .they must be paying you a jointly as $14.00 funds this time. ..they must be grateful to have an ex wrestler working in there place of work.OMG i enable the cat out of the bag' this time Sorry bye..,.,.,
2016-12-28 12:57:25 · answer #6 · answered by ? 3 · 0⤊ 0⤋
3000 YOU can get an used car for that.
2006-11-04 12:58:12 · answer #7 · answered by sony19390 2 · 0⤊ 0⤋