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UO107 fault code 2005 equinox no throttle

Car sits overnight and will idle only when starting, no throttle. Another problem, ignition will not lock the steering wheel. Occasionally the ignition switch will hold onto the key and you have to pull very hard to remove the key. Several mechanics have looked at the problem and they are stumped. We suspect it has something to do with the faulty ignition switch or possible a low battery. There is enough energy in the battery to start in the morning. Again if left overnight, the car will start but only idle, two engine fault symbols light up on the dash, engine will not throttle up. If you remove one of the relays and reinstall everything works fine. If you leave the car for a few days the battery runs down, cannot start the car. The battery is original.

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Posted on Jan 02, 2017

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SOURCE: 2006 Chevy Aveo won't start in cold weather

go to an auto parts store and get an electcic dipstick heater . remove your oil dipstick after parking car for the night.install electric dipstick preferrably while engine is still hot plug it in at night .this will
help keep the oil warm and also the block after car starts unplug heater remove it and install original dipstick. this is the easiest to install but there are also block heaters

Posted on Jan 06, 2009

  • 25 Answers

SOURCE: battery goes dead overnight

Hmmm...I wonder if several Equinox's battery that lose voltage only happen on factory installed radios with XM OPTION ONLY ???
Newer Equinoxes (and Pontiac Torrents) now have XM and regular radio wires are combined into one antenna installed on the roof (just above the rear hatchdoor area)
My gut feeling is that IF the XM's wire is pinched by the left rear plastic trim's metal clip inside (the upper interior trim part is behind the left rear quarter window)
It MIGHT be the cause of the radio's 'short-circuit' if the tan-coloured wire is pinched onto the metal body frame....perhaps you could pry that trim part out carefully to check for XM's tan-coloured thin wire located there.
IF you wish to check this out, pop open the rear hatchback door and look for the plastic trim part located at the upper-corner between the left-rear quarter window and hatchback area.

FYI: it has 6 vertical metal clips behind the plastic trim part....ensure it goes back into place properly without bending it during reinstallation......IF you need to replace the XM's tan-coloured wire, the XM wire socket are connected from the rear roof antenna to the XM unit located below the interior left rear quarter window area.

Hope it helps!

Posted on Jan 13, 2009

  • 6674 Answers

SOURCE: Hard start, rough idle, some black smoke, engine service light on

A scan for trouble codes may point you in the right direction quickly, rather than hit & miss, with replacing parts. Some of the autoparts stores will scan for free, and your right where you need to be to get the right part at the same time.

Posted on Mar 04, 2009

66 chrgr
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SOURCE: 1999 S10 Blazer 2WD 4.3L V6. Starts hard, idles rough.

you have a single injector under the intake plenum it has 6 branching fuel leads off of this.A very common problem is the regulator attached to this and it leak off fuel which falls into the intake .causing this problem. it needs to be replaced .i have done at least 80 of these in my career.this will fix your problem.thanks for choosing fix ya

Posted on Mar 04, 2009

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SOURCE: ignition cylinder won't turn

I had the same problem in a 94' trooper. Basically the Ignition lock cylinder is wore out and you need a new one. Mine wouldn't turn past lock and no matter what I tried it wouldn't turn. You can go on auto zone and find the part, mine was about 61 bucks, it comes with keys and the ignition cylinder. The deal is that to get your new ignition cylinder in you have to get your original turned to off or acc I can't remember. You'll see with your new ignition cylinder that when you turn the key there is a button that can be depressed but only when the key is turned past lock and it also won't depress in start. First, disconnect battery and wait like 30 minutes. So, what you do is take a screwdriver handle and place it up against key and take some pliers or something and beat on it a couple of times, this gets the key in deep enough to where you can eventually turn it. I swear it will eventually turn, once there, take off the top and bottom plastic covers off steering wheel/unscrew electrical wires on back of ignition cylider and other side and you know the button I referred to basically you have to depress that with key in acc or off and it will slide out. If your having trouble finding the button look at new ignition cylinder in comparison to old one and you can see where the depressed button is on side closest to you, you'll see a little hole up on the side of housing that you can depress.

Posted on Apr 15, 2009

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How can I fix 2005 equinox?

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How do i test or fix hard to start up and down idle and missfires

Have you replaced any of the ignition components? It sounds like it may be time for the spark plugs, plug wires, distributor cap, rotor and ignition coil. These should take care of your misfires. If the idle is still a problem after the ignition tune-up I would look at cleaning the Idle Air Control Valve. This can be done with some carb or throttle body cleaner. This should be done when you have time to let the car sit for while. Drive your car and get it up to operating temp. With the car off, take the hose off between the air filter and throttle body. As you look into the throttle body you should see a hole in the side, this is where you spray the cleaner. Fill this area with the cleaner and let it sit for a while, overnight works well I have found. When you start it again it will run like garbage for a bit, but it should settle out pretty quickly.

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What do the codes P0507, P2111, P2135 and P0221 mean

P0507 is Idle Control System RPM too high - I bet your idle is around 1500-2000 rpm, right? That could be the idle air control valve, or something as simple as a mass airflow sensor cleaning (get the specific spray for it, not just WD40 or something).

P2111 - Throttle ActuatorContro System. On a 2004 you may have to clean the throttle body. It's not THAT big of a deal, but run by the dealer and get a new gasket first.

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Maybe someone messed with the intake on the car and knocked some wires off. Check the throttlebody connector that it's seated all the way in.

I'd start by disconnecting the battery overnight or pulling the fuses for it (remember to let the car sit for 15 minutes after ignition off before pulling the negative cable, then turning the ignition to position 2 before you reconnect it).

You might want to call a local Volvo shop (or dealer) with a VIDA/DiCE connection to get a proper read on the codes.

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Idling shakes


Older systems used an Idle Air control sloenoid, to control slight changes in air flow for idle and loads......also the throttle plate is controlled by a cable....

TAC systems(Throttle Actuator Control) have a motor in place of a cable, controlling throttle plate opening......and don't use an IAC valve......

TAC system......clean throttle plate and mating bore as best as possible......then with key out of ignition, disconnect the neg bat cable, and then the positive one....hold cables together for a minute.....this resets all modules......also makes sure the tube that goes from snorkle to the rear valve cover is intact.....

For cable throttle bodies, once again clean the throttle plate AND the mating bore.....also remove the IAC valve, clean the pintle and the mating passage......

Check for any possible vac leaks.....once again check the fresh air tube to make sure it is attached to the rear valve cover....

Sep 06, 2012 | 2005 Chevrolet Equinox

1 Answer

2005 equinox awd 21,000 mi UO107 fault code two engine symbols displayed when you attempt to start engine car will rev up then settle to idle no throttle control -ignition switch does not lock the ste

Your problem could be at the fuse panel. A cheap fix is to get some stranded wire. Small gauge, like 24 or 32 gauge. Cut small pieces and strip the ends and put them down in the fuse panel where the relay goes. Then put the relay in. If this doesn't cure the problem, look to the throttle body plug. best to replace the plug. If the wire woks for the panel, Leave it or replace the fuse panel.

Apr 09, 2017 | Cars & Trucks

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2005 chevy equinox do my radiator and condensor

Hello: You may have a cooling fan(s) problem. Start the truck, turn the a/c on max, both fan and a/c control. Open hood the cooling fan(s) should be running. If not then you will need hands on trouble shooting. It could be fan(s) motor(s), relays, relay control, ie PCM, wiring, fuse etc. Systematic hands 0n trouble shooting will be needed with a upscale scan tool.

Jul 05, 2011 | 2005 Chevrolet Equinox

1 Answer

I have a 2005 cgev equinox. it takes about 2 to 3 times before starting. the mechanic said the locking gas cap is causing this/ what is your opinion

If the gas cap is causing this you should have a engine light with a fault code PO 4155 fault is mass gas pressure loss.I personally gone through about two hundred the way i explained it.

Dec 20, 2010 | 2005 Chevrolet Equinox

1 Answer

How to change ignition switch 2005 equinox

I have a 2005 chevy equinox and when i turn the key, everything comes on when i turn the key but the car will not start however my boyfriend goes under the car ith a screw driver and does something with the cylinoid and some other part and then it starts right up. Would this be an ignition switch issue?

Dec 15, 2010 | 2005 Chevrolet Equinox

3 Answers

3 codes po303,uo101,uo107

break down of the codes is

po303 - that would be a misfire on cylinder 3
uo101 - cant communicate with TCM
uo107 - lost communication with throttle actuator control module

Feb 26, 2009 | 2005 Chevrolet Equinox

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