friend of mine has 07 700EFI ranger and it idles to slow like 750 RPM's, checked for cods and nothing. how can i adjust the idle up our does the dealer gotta. only 1300 miles on it. the book says it idles at 1200 RPM's. Thanks for any help.

 

bump, anybody have an idea before i call the dealer Monday.

 

Idle is preset by the tps sensor unless someone has tinkered with it? Only adjustment you can make is the throttle slack adjustment, about 1/8" slack on the throttle cable. Under the seat,the adjuster is on the cable down from the throttle body housing under the rubber sleeve. DON'T adjust too tight to try to compensate for the idle! Must have slack at the foot pedal! Some I've read have done this and is dangerous! Idle should be around 1150-1180 rpms. If slack adjustment doesn't help,then possibly the tps and idle will need to be reset? Dealers have a harness adapter for tps calibration and idle adjustment! PLUS after the TPS is set to the "base" reading, it takes a "d" ring adjuster to turn the idle screw up while measuring the "vdc" reading on an ohm meter! OPT

 

I purchase my 2007 used from a dealer.

When I got mine it was set at 750. With in a month it won't even idle at all. I can give it some gas and get it started, and as long as I keep a little pressure on the gas pedal, it runs just fine.

I saw one post that suggested that the Throttle Body may need cleaning.

My problem is that I don't know where to look for the TB. My guess is that there will be a lot of covers to remove as it seems everything is covered in some way.

I did try to tighten the gas cable at the pedal, but there is no adjustment there.

Any ideas?

Thanks

 

Welcome to the forum! There is no adjustment at the petal.Just pop the seat and the throttle body is right at the back of the engine. Make sure the clamps are tight on the throttle body intake manifold and air box. The throttle cable is on the right side(facing the engine) and the slack adjuster is about 8-10 inches from the throttle body.Just don't tighten too much! The pedal must have a little slack on the cable. If this doesn't help then the tps might need to be adjusted. Also the T-Map sensor located on the air box inlet between the seat and the cargo box was in a bad position and had problems on the harness wires having shorts or breaking internally. Just like all the other efi machines. If the idle is erratic or backfires this could be part of the problem? Harness repair kit # 2875542 is offered,but better replacements are available. Look at the expert section "sticky" about efi problems on the 500,700,and 800 machines. Plus look up your model under "air box" for location of the T-bap sensor (#5) Browse You can clean the throttle body if dirty,but be careful with the wiring. Plus make sure your air filter is clean.
OPT

 

I had an 2009 700 ranger the other day that had an slow idle....So notice an idle speed stop on the throttle shaft.and noticed it had an odd screw to adjust stop...I adjusted that stop screw an bingo that fixed the low speed idle problem.......

 

That odd screw is the "D" ring adjuster and idle is set to a certain vdc. It's shaped that way to try to keep people from tampering with it as it has factory sealant on the screw, but people have If you're not careful it will mess the efi settings up. I've had a bunch come in with the D ring adjuster messed up,chewed up and had machines idling all all over the place to where I had to start back from the base tps vdc setting and idle setting vdc. Just a word of caution on this from what I've experienced. This is why I'm not a fan of efi machines because they're hard to work on em without Digital Wrench software or testers of some kind that most people don't have.Sometimes you can get by adjusting this screw a little,but really not advising to do so. Just give me that old time rock and roll and carburetors OPT

 

OK, I've found the Slack Adjuster. It has a rubber cover. Looks like it should be a two peice cover, but acts like a one peice. I tried to pull it down to get a full look at the connection/adjustment, but didn't want to pull to hard for fear of breaking it all together.

With the transmission in N, I can apply a little gas, and the engine cranks beautifully, and at around 1100 rpm, is smooth.

Should I fear pulling off that rubber cover? Is it a one peice or two peice cover? Any secret tricks?

Lastly, if I did want to clean the TB, do I unscrew the 4 screws that holds the side plate on, or take off the front/back intakes?

You have already been a great help in just informing where things are located.

Rick

 

Opps... just re-read my post... I do know how to spell Piece...

 

Just pull back the rubber boot and you will see a plastic lock nut on the cable adjuster. Loosen the lock nut and you can unscrew the adjuster while holding the bottom part of the adjuster. This takes up slack. Check the slack on the gas pedal to make sure it's not overly tightened and turn the steering wheel to see if rpms rise. If they do loosen the adjuster to where the idle doesn't change then tighten the lock nut. This may or may not help the overall idle,but worth a try. On the throttle body loosen the clamps on the intake manifold and tube going to air box and pull the throttle body out(you may have to disconnect the TPS connector) Best to use gas on a rag or electrical cleaner spray if throttle body is dirty. DON'T advise adjusting the D ring shaped idle adjuster on the throttle body as it works together with the tps sensor setting. If none of this helps see if the dealer can set it to the right rpm for you as it wasn't right when you purchased it and shouldn't take him 10 minutes to do it right!! The dealer should have the correct adapter that has a 9 volt battery and reg/rectifier and lead to plug into the tps harness. The throttle cable has to be removed OR all the slack must be adjusted in to where there is no pressure on the butterfly lever. The side plate has to be removed and the D shape adjuster backed out to where it's not touching the butterfly lever. Then the vdc readings are measured on the TPS sensor and adjusted to the base setting if necessary,then the adjuster screw is slowly screwed in and must stop when the vdc final reading is reached. Sorry for the long post,BUT this is the correct way to adjust the idle on efi machines. This should give you the correct idle rpm when he is finished. OPT