BigRed59

Hey Guys! What's up? I just joined your forum and I am relatively new to working on cars/4Runners soo bare with me if i sound stupid/naive.

Anyways, whenever I go to start my 4runner when it has been sitting for the whole night, it starts up fine. After I drive somewhere then turn it off, come back 15 minutes later then try to start it, it cranks for a while then barely starts. It'll be at a really low RPM (500-700) for a while, then i'll put it into drive, and drive about 1/2 mile then come to an idle and it will idle fine. My truck does leak oil from the valve cover gasket. Is this contributing to the problem? if not, should I have my fuel pump replaced/rebuilt?

justin_4runner

i would look at the cold start set up, could be a bad sensor feeding gas to it when it does not need it.

BigRed59

where can i find the cold start set up/sensor?

justin_4runner

there is a temp sensor on the back of the motor and the injector is up top on passanger side. find the fsm for your rig and u can see what sensor is what.

BigRed59

alright man, thanks for the help, I will check that out. I will buy a new sensor and see how that works.

DeathCougar

iTrader: (23)

Start by getting yourself a factory service manual. Then, check normal things like the TPS, and AFM. You can also check the temp sensors as suggested, which often will make it hard to start when warm.

BigRed59

can one of you guys post a link to an fsm that actually works? whenever i go clicking on links, it always says, "error" Q_Q

BigRed59

and i think this is good advice, because it smells Really rich when i run it.

weaselman

go here

http://www.ncttora.com/fsm/

and click on the link for your truck

BigRed59

hey guys. been trying to look for the cold start injector timing switch at junkyards, but haven't found anything yet. Should I be looking for tha cold start injector switch or a engine temperature sensor or what?

95blackToy

you probably wond find a cold start time switch unless you go to a place where they let you go look. I dont think they know what it is or something. I called around 20 junk yards with no luck. Ended up buying a new one.

BigRed59

where did you buy it from?

95blackToy

Got it from the dealer for like $78 or something. Its a bit high but if thats your problem then its worth it because it will most likely last the life of the truck.

BigRed59

alright. i'm going to check that, my MAF, and my Idle Air Control Valve. Anybody know where the IACV is on a 3VZ-E?

BigRed59

btw guys, just to update, one of my battery cables was sooo badly corroded that it was barely touching the starter. Plus, and this was definitely the biggest issue when starting, a few of my spark plugs were about to fly out of the combustion chamber! One was crossthreaded, and 2 more were just loose. Needless to say, my compression was virtually non-existent. Now, alls i need to do is tackle the valve cover gasket leak...