22RE Warm Engine problems (1 Viewer)

[tad3kids]

I recently purchased a 92 pickup with the 22RE and had the valves supposedly readjusted, new exhaust manifold gasket, and New AC comp. I drove it home, on a warm day, and noticed A little bit of power loss so I turned the AC off but it failed to make a difference. Today, I changed the plugs and wires with no avail. After the truck warms up a few, it seems to idle down and the motor seems to jump a bit. I am what you call a cosmetic me mechanic so bare with me....any thoughts?

 

[Mudder]

These trucks do have a high idle when cold or shut off for a while. After thatbthey do idle down

 

[tad3kids]

I can actually read the writing in the belts when it idles down....is that normal. Didn't know if I need to readjust my valves and/or check the timing.

 

[muddpigg]

Are you saying idle is low when you crank it after it is warm. Say 15min or so...

If so like mentioned above it happens. There was a service bulletin to address it but most say it still does it afterwards. Bulletin called for a different temp sensor that mounts to the upper coolant mounted to the thermostat cover. Have seen post of guy the ran it the wire to the sensor through a switch to ground to stop it. Leave switch on a few minutes then off. If you look at wiring diagram that sensor go through same controller (don't know if that is best description) as AC idle up.

 

[tad3kids]

Yes, after it runs for about 15 mins, the idle drops and it's starts running a little rough. When I am driving it when this happens, it seems to have a decrease in power. I will def check the service bulletin out, thanks

 

[pappy]

Check your TPS adjustment. Sounds like it might be right on the "edge."

 

[muddpigg]

So you're starting it cold then after 15min of running idle drops?? That's a bit different.

Have you checked codes??

 

[tad3kids]

No, the check engine light comes on but the cat is gone and the exhaust is straight piped to a new muffler

 

[Mudder]

Doesn't means its the o2 sensor. If its before were the cat was and you o my have one then you have codes. Do you k ow how to check for codes on these trucks? Just asking don't take offense

 

[tad3kids]

No offense taken....I don't have a code reader....usually just take it to the parts store and let them check it, lol

 

[Mudder]

If you pop the hood next to the due box you'll see a plug spot with a great cover. Take a paper clip and put it in t1 and E1 then turn the truck to ig n and the engine light will blink the codes.

 

[tad3kids]

Ok will do, thanks...how do I go about adjusting the TPS....sorry I'm new at this

 

[Mudder]

http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

 

[tad3kids]

Thanks

 

[tad3kids]

While I have someone who knows what there're talking about....do you know why my speedo goes straight to 90MPH when I crank my truck. It stays there no matter what speed I am traveling.

 

[Mudder]

I wish I could but my only thoughts are try a speedo that is good and if so then do some reading on of hours is cable or no and go from there.

 

[tad3kids]

Ok, thanks

 

[muddpigg]

You're codes will be different than mine but down load a copy of the FSM. It's the best reference for troubleshooting your rig. If you need I link you'll have to wait till I get on a PC. This could be a couple things so the trick is a methodical approach.

 

[tad3kids]

Good deal, thanks

 

[tad3kids]

Ok, I checked the codes and I'm getting a 21 because it doesn't have a Cat, and I'm getting a 41, 43, and a 52....