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85 MR2 wont rev, engine rattles

Starts but wont rev

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I have a 2001 Toyota MR2 Spyder with only 55,000 miles. It is completely stock, no mods. Recently it has lost much power and has a rattling noise above 3k rpm. Also it won't rev past 5k. Any ideas?


Get ECU error codes read at your favorite auto parts store (ask nicely). That should give you a starting point. This is the first thing a dealer would do.

Apr 11, 2015 | Toyota MR2 Cars & Trucks

1 Answer

Mr2 mk 2 engine rattles


Correct oil used. Level ok? Correct filter? Any lights on dash?

Apr 05, 2013 | Cars & Trucks

1 Answer

Engine rattleing when i accelarate


it sounds like the injectors are starting to plug or you may need to use higher octane fuel

Jun 28, 2012 | Chrysler 300 Cars & Trucks

1 Answer

92 mr2 very hard to start when it starts and rev it up it starts smuttering itself and back firing


Sounds much like a slipped timing belt or one with a tooth or two missing. Since your engine is not an interference type, damage isn't awaiting you as with many other cars but if the belt has more than 60000 miles on it, it's time to change it.
Timing belt installation on many cars is pretty complicated as far as access is concerned so you might want to get a quote from a dealer. If you want to DIY, check MR2 forums and you'll probably find help there.

Jan 31, 2011 | 1992 Toyota MR2

1 Answer

MR2 Acceleration issue


check the air intake tube to the engine for a crack between the MAF sensor and intake of the engine, pull it off and bend it around. look at the bottom carefully.

Aug 13, 2009 | Toyota MR2 Cars & Trucks

1 Answer

Mr2 Spyder rattling noise from engine


the noise is the heat sheild area that is rattling around i have the same problem. I was told it was 'pinking' whihc is when the fuel is not quiet right ( as toyota s are designed to run on 95 octane ) but i had metal parts that where loose around the heat sheild and i had them welded back on. Get them mechanics to have a look - it cost me about £60

Jul 27, 2009 | 2001 Toyota MR2 Spyder

1 Answer

Engine won't rev


system to lean means that there is not enough gas getting into the system try checking fuel filter and fuel injectors that should help you there hope everything works out

Jul 06, 2009 | 2000 Toyota MR2 Spyder

1 Answer

When the weather is warm...


Hot weather equals thinner oil equals rattles


If the engine is a high miler try using a multigrade with a higher viscosity or dump a can of STP or Wynns into the engine to bulk out the oil when it is hot

Jul 04, 2009 | 2000 Toyota MR2 Spyder

5 Answers

2001 MR2 Spyder / engine rattles when I accelerate


i would have the gas filter replace.have them put
the code reader on the car and check for poss.code

Apr 08, 2009 | 2001 Toyota MR2 Spyder

1 Answer

My Toyota Mr2 Spyder is rattling


Pound on the catalytic converter, you will probably find your rattle inside, if so, you will need a new one, also check for any loose clamps or rings that have come loose, just pound on your exhaust with the side of your fist, you should find your rattle, or sometimes the heat sheilds above the exhaust come loose.

Nov 22, 2008 | 2002 Toyota MR2 Spyder

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