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07-09-2019, 09:44 PM | #1 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Can somebody help with this fault.
It is.... Coughing on take off. Once revs exceed 1k runs well. Does all the good stuff. Idles well. 600 to 700. Strange fast vibration when in D idle. Faint shudder. With very careful and slow take off, fault can be overcome. With fast take off, it's like the old days of slipping bands, until mobile. Machenic feels sure it's a motor fault, but can't find problem. We have: Changed plugs and leads. Replaced coil pack twice. Cleaned ICV unit. This car sits on the beach front. Could it be electrical? Salt air is constant problem with window switches. Maybe an extension of that environmental impact. Any ideas would be highly appreciated. Dan |
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08-09-2019, 08:52 AM | #2 | ||
Chairman & Administrator
Join Date: Dec 2004
Location: 1975
Posts: 107,236
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It has to be throwing error codes so what comes up with a scan tool?
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Observatio Facta Rotae
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08-09-2019, 09:28 PM | #3 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Good question...I'll check tomorrow.
Dan |
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09-09-2019, 09:24 PM | #5 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Thanks for that tip PG2.
I'll follow that one up. Would you consider that suggested fault would appear across the rev range? Once the motor gets past initial acceleration at take off, the fault disappears. But it can be quite violent at start, where it sounds like it's kicking back on the starter. |
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09-09-2019, 09:29 PM | #6 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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11-09-2019, 12:26 PM | #7 | |||
Starter Motor
Join Date: Aug 2019
Posts: 11
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To PG2
Quote:
I'd be interested in comparing them to this fault. I've been around two stroke outboards, and they play up in the strangest ways with air leaks, but never in my years with vehicles, have I had that as a cause of a fault. My mechanic deals generally with vehicles. Probably a ford garage may be more tuned in to a problem specific to the AU. Problem is the one fifty klm round trip etc. I've really got to deal with this locally. It's a mysterious fault. Dan |
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11-09-2019, 05:01 PM | #8 | |||
#neuteredlyfe
Join Date: Apr 2012
Posts: 10,625
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Quote:
It is that common and cheap to fix (if you do it yourself) that it is one of the first things that I check when the car is playing up. |
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11-09-2019, 05:17 PM | #9 | ||
The Terrain Tamer
Join Date: May 2013
Posts: 36,567
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Possibly an engine mount?
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Current Ride : A Ford owned D3... |
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11-09-2019, 05:47 PM | #10 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Thanks beastie.
It certainly has similarities. That might explain the noticeable shuddering when backed-off and coasting to a stop from 50kph. I had that fault in a past vehicle. And it is very similar, with the exception of the spluttering, which sounds like one cylinder misfiring. It's getting progressively worse. I think the end result will be, it'll drop one cylinder out. The motor has only done 150k. Once to speed it performs perfectly. No power loss at top end. Gear changes good. No vibrations. Dan. |
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11-09-2019, 05:56 PM | #11 | |||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Quote:
Appreciate entirely, your thoughts. Gone are the days when I could do these things myself though, because of the situation where I am. I can easily understand technically, how this simplicity could produce the results im dealing with. I spoke to the machenic on this possibility after reading your response. He said he checked for that fault. But didn't say how. And how would you know, and with what check. Do you have any idea on that aspect? Dan |
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21-09-2019, 11:28 PM | #12 | |||
#neuteredlyfe
Join Date: Apr 2012
Posts: 10,625
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Quote:
If the mechanic says that he has checked for air leaks then all I can say is to take his word for it. Last edited by PG2; 21-09-2019 at 11:58 PM. |
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This user likes this post: |
22-09-2019, 03:24 PM | #13 | ||
FF.Com.Au Hardcore
Join Date: Apr 2014
Location: NSW
Posts: 1,610
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Check harmonic balancer hasn’t moved or is hitting sensor
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22-09-2019, 09:01 PM | #14 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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*...quote:
Old 03-07-2016, 09:19 AM #1 clevocortina Regular Member Join Date: Nov 2006 Posts: 46 Achievements 10 Year Award Default Series 2 au.. Idle getting low and flat spot Hey gents... My partners Au has developed a problem where the idle speed is slowly getting Lower and lower to the point you either have to knock it into neutral at the lights or two foot it. Also it's stumbles on the transition from idle or coast to accelerate.. Like this Bbbbb then it's smooth... Car has good power and does a skid ect but just this flat spot when a decent amount of throttle is added... It's like a Carby when the accelerator pump is stuffed... I have removed the injectors and had them sonically cleaned.. I have also replaced the coil and leads... Plugs arnt that old One of the posts on the old coil was completely gone just a pile of dust but amazingly that didn't seem to make a difference.... I was thinking about swapping ecu for my one as my car runs perfect.... Any suggestions would be appreciated...* ..XXXXXXXXX GDAY PG2 and POSTER RE HARMONIC BAL.,XXXXXXXX thanks for sticking with me on this one. Above is a copy of a post I located on this thread which matches the exact fault. There is a top reference to the date etc at the top. He solved the problem by replacing the inlet gasket and fuel pump. But did them simultaneousl, thus which particular unit was the problem is unclear. But I've made some progress. Having noted variously that the inlet manifold bolts loosening is common, out came the ten mm spanner and bingo, they sure were. Some had nearly half a turn to tighten. The advice re above wasto observe any changes to performance, and subsequently replace gasket. Well it improved the fault by at least fifty percent, (not fixed), but it's highly encouraging). It's removed the spluttering part from the fault, leaving it with a slight instability on initial take off. It's interesting, because this fault mimics so many other unit failures which the aboveposter, like myself, was taken down the same fruitless road. I'm booking it in this week to have gasket replaced. Fingers crossed. I'll repost when done. Thanks heaps for your input and this brilliant site. Dan |
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22-09-2019, 09:08 PM | #15 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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22-09-2019, 09:10 PM | #16 | |||
Starter Motor
Join Date: Aug 2019
Posts: 11
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Quote:
Regards Dan |
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04-10-2019, 06:04 AM | #17 | ||
Starter Motor
Join Date: Aug 2019
Posts: 11
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FYI:
Fixed. Problem as outlined is fixed. Thanks for the invaluable tips from forum members which led me to the solution. Inlet manifold gasket replaced. Very lose bolts. Most at least quarter turn and some more. Tightening bolts improved situation, but gasket needed replacing to remedy completely the fault. Regards Dan. |
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04-10-2019, 04:56 PM | #18 | ||
Next upgraded Mk1 Leopard
Join Date: Jan 2005
Location: Sydney, in the burbs
Posts: 4,913
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Got to love the AU forum
UK And well done
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Plastic Surgery 1 AUII Monsoon Blue How 2's: Change rear view mirror, Install backfire valve, Change foam front seats, Install auto transmission cooler, Replace Trans Shift Globe, Remove front door Trim, Paint AU headlights, install door spears, Premium Rear Parcel Shelf, go here...
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08-10-2019, 11:08 AM | #21 | ||
Donating Member
Join Date: Jun 2007
Location: Checking out soft furnishings....
Posts: 8,810
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Unfortunately Facebook groups have taken over and we are losing lots of resources as no way to search issues through there. It's obvious how quiet this forum is now with posting but im sure people are using it as a resource now more than ever.
I really dislike Facebook
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Proud owner of the ugliest Ford ever made |
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