Recent content by Cherokeedad2

I've been looking up some diagrams of the vacuum system and, I didn't realize how extensive it is. Definitely not the brake booster, the pedal is fine. Using a cap to isolate the system is a great idea, thanks. I'll follow up on Monday.

I haven't run a compression test, as it runs great over 2,000 rpm But, the vacuum angle is probable. The front vacuum connection has a deteriorated 90 degree rubber connector. There's 4 vacuum connectors on the manifold. Can anyone tell me what they connect to,? I know the third one is for the...

Forgot Tested fuel pressure - perfect

At Tim's suggestion, I got a new Dorman TPS and installed. No change To summarize: Idles like a dragster Poor throttle response up to 2,000 rpm Replaced TPS IAC CTS Spark plugs tested MAP TPS CPS All good Swapped MAP with another OEM Cleaned Throttle body with new O rings Cleaned...

Ok But, the factory spec at idle is .25-.95 and I'm at .7

See post #9 Tested the TPS and it's within range Leak tested the TB and it's leaking badly around the shaft. Removed, disassembled, ultrasonic cleaned, going to get new O rings and reassemble and reinstall

Thursday update Pulled the injectors, cleaned them and reinstalled with new O rings Better above 1500 rpm, still wants to stall and rough idle

Tuesday update I pulled the plugs and cleaned them. Odd results, most were dirty on one side, two were dirty all around and #4 was extra dirty and I had to hand clean it after 10 minutes in the ultrasonic I tested the CTS, it was out of range, replaced it, no change. Currently disconnected...

TPS tests good - swept from .7 to 4.0 + Haven't tested the CTS It indicates as usual on the gauge Replaced the AIC - no change

Monday update Since it was idling poorly, but felt much better over 2,000 rpm, I pulled the AIC and cleaned that. Idle issues decreased by 50%, but still remain Test drive showed improvement in throttle response, but still troubled. Cleaned the AIC and it's passage again, no real change.

Update I checked the O2 sensors connections and they are ok I checked the O2 fuse with my VOM. And it's ok. Left the battery cable off overnight Started the jeep, even rougher idle/off idle than before Took it on the test loop up the hill, runs decent from 2,000 rpm and crap below that. It died...

The problem is, it wasn't showing any codes So, off to YouTube, found a similar condition in a video that was caused by O2 sensors. So, ordered NTK O2 sensors, installed, fresh plugs, it runs better but idle,/off idle is still very rough, and the CEL finally came on. Tested, O2 sensor 2 is the...

The 98 4.0 suddenly started running rough and wouldn't idle/ it would die Like, went to the store, ran fine. Came out, issues As this seemed to be ignition issue, checked the cap and rotor, fairly burnt, so replaced No change Pulled the plugs and they're all black, cleaned and reinstalled, it...

It came home today, showing these codes P0700 generic P0705 trans range sensor circuit P0715 input shaft speed sensor circuit P0756 solenoid B performance P 0758 solenoid B electrical The0715 code had me clean the NSS connector I drove it, still not quite right on takeoff from a stop. It...

Yes, it's had regular fluid changes I haven't dropped the pan as yet. Fluid is clear at the dipstick