Question about 1987 Toyota Supra
When I start the car it Idles rough then eventually dies out. But when in gear 1st - 5th it runs fine then when i stop, idle is rough again and rpm drops and cars dies out again but starts right back up. Also smells rich. Please advise...Thanx.
I would suspect a vacuum leak. At idle under high vacuum the air fuel mix is being leaned out until you have misfiring so bad the engine quits. The exhaust smells rich because even a lean mixture, if it doesn't light off, if full of unburned fuel. At road speeds, the vacuum is low so the engine doesn't care if there is a small leak somewhere. It is getting most of its air through the open throttle. Check all your vacuum lines but remember that even if every line is okay, it could still be leaking from an old cracked intake manifold gasket.
Posted on Jan 28, 2009
Check timing and set idle to 650rpm
Posted on Jan 21, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Feb 15, 2017 | 1991 Jaguar XJ6
May 01, 2014 | 1994 GMC Sierra
Nissan Pathfinder Backfires? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
---------How to adjust rpm? http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
------------Engine cuts out at 3000 RPM? http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
----------This will help.Thanks.
Feb 17, 2012 | 1992 Nissan Pickup
Sep 06, 2010 | 1996 Ford Explorer
Aug 21, 2010 | 1987 Dodge Dakota
Dec 28, 2009 | 1987 Nissan Pickup
Jun 13, 2009 | 1996 Ford Thunderbird LX
867 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: