Bradley0770
Member
- Joined
- December 14, 2020
- Messages
- 11
- Reaction score
- 1
- City, State
- Mission Viejo
- Year, Model & Trim Level
- 2003 4.6L V8 XLT
2003 4.6L XLT
I recently turned 18 and purchased my explorer for a really good price, only problem I noticed at the time was a faulty alternator, I replaced that along with spark plugs. Soon after, I discovered a coolant leak. Took me a good while to discover exactly what and where it is. I bought a new intake manifold and swapped it out. Fixed the leak. After that, I've been getting lean codes on a small scanner I bought. I lived with it for a while while trying to figure it out. I had a coolant hose pop off at one point, I put it back on and put a hose clamp on it instead. The rebuilt alternator failed so then I but a new one instead and put it in. I blew smoke through the vacuum system and saw smoke coming out between the egr and throttle body. I bought a metal gasket, but it didn't solve any codes. I decided to just go for it and swap the oxygen sensors. Was a hassle but I got at 4 swapped out for new ones. Sadly, not a thing changed. Also swapped the brake pads. The car drives, symptoms are horrible gas mileage, rough idle after 5 minutes warming up, and only recently, the car jerks back and forth as if the throttle was being tapped, rarely when holding a medium speed.
Current codes I have right now:
P0059
H02s heater resistance ban 2 sensor 1
P0135
O2 sensor heater circuit ban 1 sensor 1
P0155
O2 sensor heater circuit ban 2 sensor 1
P0171
System too lean bank 1
P2197
O2 sensor signal biased/stuck lean bank 2 sensor 1
I'm speculating that the coolant explosion cause something to go wrong in the wiring harness or there is still a vacuum leak.
If anyone has ideas, I would be very happy to discuss any solutions!
I recently turned 18 and purchased my explorer for a really good price, only problem I noticed at the time was a faulty alternator, I replaced that along with spark plugs. Soon after, I discovered a coolant leak. Took me a good while to discover exactly what and where it is. I bought a new intake manifold and swapped it out. Fixed the leak. After that, I've been getting lean codes on a small scanner I bought. I lived with it for a while while trying to figure it out. I had a coolant hose pop off at one point, I put it back on and put a hose clamp on it instead. The rebuilt alternator failed so then I but a new one instead and put it in. I blew smoke through the vacuum system and saw smoke coming out between the egr and throttle body. I bought a metal gasket, but it didn't solve any codes. I decided to just go for it and swap the oxygen sensors. Was a hassle but I got at 4 swapped out for new ones. Sadly, not a thing changed. Also swapped the brake pads. The car drives, symptoms are horrible gas mileage, rough idle after 5 minutes warming up, and only recently, the car jerks back and forth as if the throttle was being tapped, rarely when holding a medium speed.
Current codes I have right now:
P0059
H02s heater resistance ban 2 sensor 1
P0135
O2 sensor heater circuit ban 1 sensor 1
P0155
O2 sensor heater circuit ban 2 sensor 1
P0171
System too lean bank 1
P2197
O2 sensor signal biased/stuck lean bank 2 sensor 1
I'm speculating that the coolant explosion cause something to go wrong in the wiring harness or there is still a vacuum leak.
If anyone has ideas, I would be very happy to discuss any solutions!