QuestionJohn, 1998 disco 1 4.0l gas. 1) having trouble starting after sitting in the cold and damp. will crank for 30 sec. then catch. changed the fuel filter, checked pressure holding at 38psi, changed plugs - platnum, changed wires.
2) idle drops when sitting from 750 to almost 0 then back up to 750 or higher. oil light will come on when it gets really low idle then goes out once it gose back up. played with the throtle cable adjust to try to correct the idle. recently changed out the ECM as the old one got water in it and would not let the truck go over 30km/h now it runs better. 3) noise coming from alternator or belt. sounds like a rushing water sound. should i replace the alternator and belt? 4) parking brake light comes on for a sec while breaking. checked the p break and it is down and working fine. checked the fluid level and is between min and max. cleaned the contacts of the connector and tried to pump the break pedle and pushed the fluid cap bulb. 5)one of the O2 sensors bank2 #2back is sendind a code. it was butchered together using butt connectors. i want to replace the o2 sensor with a new one where can i get a proper connector for it or can i solder the wires to ensure that the connections stay clean. what can i do? thank you for your help. i know there is alot of questions but i want to make sure i cover all the bases first.
AnswerHi Bram,
wow...that's quite a crazy list.
1. Could be starter or solenoid. Need a good 120RPM to turn over the engine. I've seen water, gunk and even rust in the both the starter and solenoid. Had to rebuild with new brushes to fix this problem.
2. Rough idle could be TPS (throttle position sensor), a common problem and not too expensive or difficult to replace. Of course water in ECM is not a good thing...what else is suffering from water ingress???
3. Noise from ALT or belt - start with belt as it costs less to fix. Bearing is usual suspect on faulted ALT. www.car-part.com has great deals on salvaged LR parts. How about $45 for a low mileage ALT?
4. Could be master C, a leak in the line or air. Not a good thing to see on the highway! Most local mechanics and flush out the brakes and test the master C. Perhaps rust in the lines has contaminated the braking system. I once popped off a caliper piston by accident and noticed the corrosion within. Brake fluid (over time) can absorb moisture and then channel it throughout the system.
Fluid level loss is a concern as is small play in brakes.
5. Soldering the line is an inexpensive way to fix this and (perhaps) better than a new connector. So long as you insulate the solder and waterproof the entire job. Why not? You could also go with new harness from LR or from one of many LR parts suppliers on the internet. Even salvaged parts would work.
Best of luck,
JohnMc
