Question about 1991 Toyota Previa
I need to pass emissions control /Aircare on 91 Toyota Previa how do I clean EGR do i have to remove it? can i clean the lines and spray into the valve itself
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
The toyota previa uses a formed silicone gasket for the valve cover and the cover is held in place by metric shoulder bolts ( 10mm). The valve gasket leaks because you can't get enough preload on the bolts to re-seat the old gasket when it gets old and shrinks. The shoulder bolts only allow you to tighten the gasket enough to seat the shoulder on the bolt. If you continue to torque down the suspected bolts, you will snap the bolt off ( don't ask me how I know this ). You can either 1.)replace the old gasket with a new one or 2.) remove the existing bolts around the leak area and put in new metric bolts that do not have a shoulder. You may want to put in a small sleeve into the existing bolt hole but shorter than the thickness of the valve cover to account for the smaller diameter bolt. You can now torque down the bolt and get enough preload to seal the valve cover without removing the old gasket. Make sure you use a torque wrench ( in-lbs) or be very careful not to snap these small valve cover bolts.
Posted on Jul 15, 2009
The flasher is bolted to the firewall behind the right side of the instrument panel and you can't get to it from underneath the instrument panel. You will have to remove the center console fascia to get to the instrument cover screws and remove the instrument cover. Then you can get to the instrument holding screws and move the instrument panel out of the way. Either a service manual or AutoZone.com will have this information and pictures. Replace the flasher with a genuine Toyota flasher relay. The aftermarket relays might look like they fit but I have found out they don't work properly. The flasher is bolted to the firewall with a 13mm bolt. Take out the bolt and replace the flasher.
Posted on Jul 16, 2009
Check for air leak into system after MAF.
vacuum leaks on intake manifold,
the air tube between the air filter.
intake manifold vacuum hose.
clean throttle plate with Berryman carburator cleaner
SEE sample picture HERE
Check for loose or no connected vacuum hose(s).
Take it for a test drive.
Please rate my answer if it's useful to you.
Posted on Dec 19, 2009
I do a lot of work on Toyota Previa before; including rebuilt engine, swapping engine and transmission and lot of things in between, but never swap a normal aspirated engine to a supercharged engine or diesel. Since i have some experience in Previa, I would like to share my opinion with you regarding your plan to swapping the normal aspirated Previa engine to a Supercharged engine. When you do a swapp like that, you will not only be dealing with just swapping engine, but some wiring, computer, throttle body, air cleaner assembly, extra frame and pulley on the accessory items, transmission as well as a right rear end to get the correct gear ratio to accomodate the new engine and transmission. I can go on even more, but let me tell you this, beside less headache, it would definitely cheaper if you were to find a Supercharged Previa and fix it up. However, if you are totally motivated to do this project, keep in mind, this engine swap will be a long term and time consuming project.l I wish you best of luck and have fun!
Posted on Jan 17, 2010
Tips for a great answer:
May 13, 2014 | 1993 Toyota Previa
Oct 13, 2012 | Cars & Trucks
Feb 13, 2012 | 1991 Toyota Previa
Jul 22, 2010 | 1991 Toyota Previa
Jul 09, 2010 | 1992 Toyota Previa
Jul 05, 2010 | 1993 Toyota Previa
Oct 29, 2009 | 1993 Toyota Previa
Feb 18, 2009 | 1995 Toyota Previa
1,420 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: