Help! Bad stuttering/rough idle/reduced engine power
#1
Help! Bad stuttering/rough idle/reduced engine power
Hi, so this is my first Mini I've ever owned. 2011 Mini Cooper S Clubman. Ill start off by saying I just bought the car a few months ago. I bought it used at around 73,000 miles. It was running like a dream until I realized I had an oil leak. That was fixed. Then I have a really harsh time even driving now. If I go over about 30 mph the car will shake,/misfire ,the reduced engine power light turns on AND check engine, and then my acceleration is really rough from there on. 45-50 is the worst. Some days is worse than others. Now as of today I drove about 7 miles, and then my battery light comes on in red (alternator??) I'm just so fed up!
#2
#4
I missed the fact that your check engine light is on. Believe it or not, that is a good thing. Have the code scanned and _maybe_ you'll get lucky and diagnose a misfire on a specific cylinder. Minimum is change spark plug and/or coil pack for that cylinder, although both of those items should be changed as a set of four (it's worth the few extra bucks in headache, believe me). Dont get the delphi coil packs on amazon for $25, they are made in china and are the reason youre here. If that doesn't solve the problem one other thing before throwing in the towel on the HPFP is changing the diverter valve on the turbo. If the diaphragm is torn you will get those symptoms as well. $65 for the part and 3 screws to replace that, easy job but in a tight space.
#6
#7
I easily get 50K+ on a set of plugs. Actually at 138K just put in the third set.
But you drive the car hard, like you stole it. Slow city driving is not good for these S cars. They really need to be driven to keep them from getting all carboned up. Any 2nd gen S that does not see more 3000 rpm for good periods of time will carbon up.
Alos of note it that at 138K is when i replaced the timing chain and took off the intake manifold for the first time and although ther was alittle carbon buold up it was minor compared to what i have seen an many.
But like I said I drive it hard.
But you drive the car hard, like you stole it. Slow city driving is not good for these S cars. They really need to be driven to keep them from getting all carboned up. Any 2nd gen S that does not see more 3000 rpm for good periods of time will carbon up.
Alos of note it that at 138K is when i replaced the timing chain and took off the intake manifold for the first time and although ther was alittle carbon buold up it was minor compared to what i have seen an many.
But like I said I drive it hard.
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#8
I easily get 50K+ on a set of plugs. Actually at 138K just put in the third set.
But you drive the car hard, like you stole it. Slow city driving is not good for these S cars. They really need to be driven to keep them from getting all carboned up. Any 2nd gen S that does not see more 3000 rpm for good periods of time will carbon up.
Alos of note it that at 138K is when i replaced the timing chain and took off the intake manifold for the first time and although ther was alittle carbon buold up it was minor compared to what i have seen an many.
But like I said I drive it hard.
But you drive the car hard, like you stole it. Slow city driving is not good for these S cars. They really need to be driven to keep them from getting all carboned up. Any 2nd gen S that does not see more 3000 rpm for good periods of time will carbon up.
Alos of note it that at 138K is when i replaced the timing chain and took off the intake manifold for the first time and although ther was alittle carbon buold up it was minor compared to what i have seen an many.
But like I said I drive it hard.
#9
Hi, so this is my first Mini I've ever owned. 2011 Mini Cooper S Clubman. Ill start off by saying I just bought the car a few months ago. I bought it used at around 73,000 miles. It was running like a dream until I realized I had an oil leak. That was fixed. Then I have a really harsh time even driving now. If I go over about 30 mph the car will shake,/misfire ,the reduced engine power light turns on AND check engine, and then my acceleration is really rough from there on. 45-50 is the worst. Some days is worse than others. Now as of today I drove about 7 miles, and then my battery light comes on in red (alternator??) I'm just so fed up!
#10
The high pressure fuel pump on my 2009 R55 Clubman S may be failing. For the last week, it has been intermittently stalling on startup.
This morning it took four attempts before it would idle. The first three attempts, it started, ran for a couple seconds, then died... as if starved for fuel. The last attempt it ran a bit "choked", then kicked up to 1200 rpm, then settled back down to idle- as if it finally built enough fuel pressure.
Once running, it runs smoothly although sport mode feels a wee bit anemic (and I'm tuned- NM ECU flash, bigger turbo, IC, CAI, full Magnaflow exhaust).
My indy mechanic suspects it's the HPFP.
I called both MINI and the dealer. At 144k miles, I'm out of the extended warranty coverage. The dealer will not cover under good will because I have not been "loyal", using an indy shop for the last three years.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
This morning it took four attempts before it would idle. The first three attempts, it started, ran for a couple seconds, then died... as if starved for fuel. The last attempt it ran a bit "choked", then kicked up to 1200 rpm, then settled back down to idle- as if it finally built enough fuel pressure.
Once running, it runs smoothly although sport mode feels a wee bit anemic (and I'm tuned- NM ECU flash, bigger turbo, IC, CAI, full Magnaflow exhaust).
My indy mechanic suspects it's the HPFP.
I called both MINI and the dealer. At 144k miles, I'm out of the extended warranty coverage. The dealer will not cover under good will because I have not been "loyal", using an indy shop for the last three years.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
#11
The high pressure fuel pump on my 2009 R55 Clubman S may be failing. For the last week, it has been intermittently stalling on startup.
This morning it took four attempts before it would idle. The first three attempts, it started, ran for a couple seconds, then died... as if starved for fuel. The last attempt it ran a bit "choked", then kicked up to 1200 rpm, then settled back down to idle- as if it finally built enough fuel pressure.
Once running, it runs smoothly although sport mode feels a wee bit anemic (and I'm tuned- NM ECU flash, bigger turbo, IC, CAI, full Magnaflow exhaust).
My indy mechanic suspects it's the HPFP.
I called both MINI and the dealer. At 144k miles, I'm out of the extended warranty coverage. The dealer will not cover under good will because I have not been "loyal", using an indy shop for the last three years.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
This morning it took four attempts before it would idle. The first three attempts, it started, ran for a couple seconds, then died... as if starved for fuel. The last attempt it ran a bit "choked", then kicked up to 1200 rpm, then settled back down to idle- as if it finally built enough fuel pressure.
Once running, it runs smoothly although sport mode feels a wee bit anemic (and I'm tuned- NM ECU flash, bigger turbo, IC, CAI, full Magnaflow exhaust).
My indy mechanic suspects it's the HPFP.
I called both MINI and the dealer. At 144k miles, I'm out of the extended warranty coverage. The dealer will not cover under good will because I have not been "loyal", using an indy shop for the last three years.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
call a junk yard or search ebay and buy a used one.
#12
#13
I called both MINI and the dealer. At 144k miles, I'm out of the extended warranty coverage. The dealer will not cover under good will because I have not been "loyal", using an indy shop for the last three years.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
I asked MINI if they would cover the repair pro rata since I'm over 120k. Was told that is highly unlikely, and I would need to have a MINI dealer diagnose first.
Dealer wants $145 for diagnostic. I'm torn about even attempting to get them to cover. Looks like a long shot.
Also was told the reason the part is so expensive is to subsidize the warranty/goodwill repairs for the loyal dealer customers. They have two price structures- one for retail and a far cheaper price for loyal customers.
#14
#15
Buy used HPFP on ebay
There are a few r56's and r55's on ebay for parts. Get a used one for about 250-300 dlls used. Easy to change. That should get you going. Also, check the condition of your spark plugs make sure they are not soaked in fuel. If they are, your injectors may have failed. Good luck.