After 3000rpm no power

Anonymous · April 27, 2005, 14:03

After 3,000rpm my car sounds like a motobike and struggles to get past 5000rpm. Had work done on the shortblock due to pre-cat but still she has no power. Checked for hose out but all seems fine. Could it be that the bearings and crank etc is still being worked in or is my car dead.

Anonymous · April 27, 2005, 14:31

Did they replace the main cat when you had the shortblock work done? Chances are it's blocked up with bits of precat and if you keep driving like this you could damage the engine again.

edit: Why are you going up to 5k RPM on new crank and bearings? s:shock: :shock: s:shock:

Anonymous · April 27, 2005, 14:51

After 500 miles thought I would see if it was OK but it can't be can it. Think the compression is low and I am lucky that its not blowing at all yet. I used to love this car, now I hate it. Cant count the things that have gone wrong, alloys, knocking on full lock, pre-cats, short block rebuild. Don't drive it hard. Toyotas engines bullet proof I think not and reading all the problems on here I cant see how you guys still like them. They are slow these days even compared to Diesel OIL burners.

Sorry guys well and truly had enough of this MR2, bills mounting up had it from new and treated her to service with Mr T at all the service points. Put my foot down every now and again no more than anyone else on here. After all it is a so called sportscar. Rant over, no more MR2 for me im getting the bus.

Anonymous · April 27, 2005, 14:56

Or could it just be that these JAP things are so good that the car is not allowing it to go over 4 -5 cos it knows its had loads of work done ? 02 Sensor ?

Please forgive my outburst

Bloody CAR

Anonymous · April 27, 2005, 15:01

Check the main cat! It's almost definitely blocked. You will need to replace it.

It's not trying to restrict itself. If you've done 500 miles then it should be ok, but I'd still take it careful until at least 1000. The engine will continue to loosen all the way to 10,000 and probably beyond.

Please, DO drive it hard s;)

s;) It's a sports car. Just wait until it's properly bedded in first

GSB · April 27, 2005, 15:28

As above, you really need to check that main cat, the engne should be able to rev, and in the abscence of any Check Engine Light, that would be my first port of call...

As for this:

Quote from: "James999"They are slow these days even compared to Diesel OIL burners.

I thought that too... My car was in the garage for a couple of days last week and I had an oil burner as a loan car. A Corolla D4-D... Thing is, when the Diesel came onto boost, it felt really quick. I have to say I was slightly shocked by the performance as it felt so much faster than my MR2... For a while I was a little disapointed. In fact I'd be lying if I didnt say I was utterly annoyed with the thought of this awful hatchback outdragging me...

So I thought I better measure it. After all, if I cant beat a smoke blowing oil burner I need a new car. The Corolla felt at its best when on the dual cariageways and motorways, especially when accelerating around lorrys etc. So I chose a flat bit of road, and timed the in gear acceleration time from 50-70mph in 4th gear. This is a very repeatable test, as it requires no skill whatsoever other than the ability to floor it at the right time. Also the Diesel lump is right in the power band at these speeds. Any slower and I'd be in the dead zone, any faster and I'd need to change gear...

After a handful of runs I came up with an average time of 7 seconds. I took the car back and picked up my '2...

When doing a couple of warm ups, I found that the Mr2 didnt feel any faster, and sure enough it turned in a time almost identical to that of the Corolla... Hmmm...

All is not lost though... At those speeds in 4th, 50-70 represents something like 2000 - 3200 rpm, so unlike the Corolla, the engine wasn't even into its powerband at those revs. Its cruising along. So I timed the car in 3rd, which puts the car engine right into the power band. Average 50 -70 time of a shade over 5 seconds. Speedo accuracy was discounted as it was pretty much the same as the corrolla, but even with a bit of inaccuracy thrown in, its still miles quicker than the Corolla. It just doesnt feel it... s:? :? s:?

Anonymous · April 27, 2005, 16:02

Gotta say, when i had same problem with my 106 it was the Cat... different engine and not a Jap car but seems like a reasonable diagnosis - get it checked out.

Good luck, and remember when the sun comes out and the roof comes down you'll soon love the '2 again!

heathstimpson · April 27, 2005, 16:52

Like Grant modern diesels can be very impressive indeed. I always run a second diesel vehicle and mainly due to the torque the mid range acceleration is always really good. Try driving something like the Audi A8 4 Litre W12 quattro and you wouldn't bother with a petrol s:wink: :wink: s:wink:

mrsmr2 · April 27, 2005, 17:02

Diesels are fast now. However, can you compare the sound of the engine at 6k revs with a diesel? No - even if the diesel did rev that high.

I was neck and neck with a new diesel S40 going up hill last week. I was only slightly faster (only just). While slightly annoying I realised I could do the same speed round the bends, and the S40 disappeared.

I didn't buy mine for outright speed - in fact I've always thought it a bit slow. I bought it for the handling, the feedback, the ability to adjust the cornering line all the way through a bend, and the engine (when it doesn't blow up of course).

I love the sound of the engine zinging it's way past 5k revs.

My other car is a diesel and I know which I prefer.

Anonymous · April 27, 2005, 18:34

Looking @ it guys I think it is the CAT, anything I can do for the short term. Will running like this cause any more problems?

Tem · April 27, 2005, 18:41

Quote from: "James999"Will running like this cause any more problems?

You will blow the engine again, if you keep driving, if you haven't already. Get it fixed ASAP!

Anonymous · April 27, 2005, 18:52

How long before it will blow do you think, all i need is a few weeks to sell it

Bongo · April 27, 2005, 18:58

Who's going to buy a car that has the symptoms you describe?

GSB · April 27, 2005, 19:23

Quote from: "James999"How long before it will blow do you think, all i need is a few weeks to sell it

Oh, nice one... s:? :? s:?

Why dont you just fix the fucking thing, instead of just lumbering some other poor sod with your problems? I hope the thing blows up now, to save the next guy the heartache and bills you intend to fix him up with... s:evil: :evil: s:evil:

kanujunkie · April 27, 2005, 20:04

here, here, this is the problem nowadays, just pass the buck to someone else s:evil: :evil: s:evil:

Anonymous · April 28, 2005, 08:39

Quote from: "Bongo"Who's going to buy a car that has the symptoms you describe?

Fair point and probably wouldn't take that much to fix it. In your original post James, you mention a whole load of things on your car that pretty much everyone on here has encountered at some point. They are known problems with the car, if not with MrT, then at least with this community. You are sitting on a treasure trove of information about our little car and yet you are prepared to give up on it because you have had problems with it. I can tell you now that its not just the MR2 that has problems. Some other Toyota's have had similar engine problems, other cars have had just as big problems (the MX-5 Gearbox problem spirngs to mind if you want a carfor car comparison) and the other things you have mentioned should all be things that have logical explanations (e.g. the knocking on full lock for instance. If a search on this forum was done properly, you would have found that although the power steering pipes and the top suspension mounts have been implicated in this problem, I found that when I changed my tyres to Toyos, the problem dissapeared. Even MrT said it was the tyres skipping and there is nothing to worry about.....)

Don't give up on your car cos you have had one or two problems. We ALL have. I don't know you and don't know your tolerances, but I have to say they don't seem to high. get the car fixed and ENJOY it. Its a car built for handling and driving, not being the family runaround. Doesn't make excuses for the things that go wrong, but don't expect miracles either......

roger · April 28, 2005, 11:44

Well said John.

James, IMO all cars can suffer from some defects or other, and definitely some makes / models seem to have a recurring theme. Bad design, engineering or whatever.

You may be lucky the next time around, you may not. Certainly the cost of putting something right is usually a lot less than the cost of selling and buying something different.

I know its a bummer if you get a duff car, I'm coming up to my first service next week and not a squeak of a problem (he says touching wood, crossing fingers etc.) May be I'm lucky because fortunately I've never been in that position - even the Morris Marina never had any major problems (eat your heart out JC s:lol: :lol: s:lol: ).

But at the end of the day we all have our own choices to make, and if you feel happier with another make, then do it. However I am sure that whatever you go for, we can all find somebody (or a web site) that will think you've made the wrong decision.

And James, if you don't fix it now and put it up for sale, legally you must disclose the problem to potential purchasers, though how many would remain after a test drive could be counted on the fingers of one hand of a handless person.

Tem · April 28, 2005, 21:47

Couldn't agree more s8)

s8) I blew the engine myself and I still consider the care reliable. Obviously it's something that shouldn't happen in the first place, but then again, I never had to take the car to warranty work monthly like some "expensive and reliable" cars some friends of mine own. Of course it sucks bigtime when that engine issue actually happens, but it'll pass s;)

s;)