barneyhyphen
Member
- Joined
- February 11, 2008
- Messages
- 46
- Reaction score
- 0
- City, State
- Nashville, Tn
- Year, Model & Trim Level
- 1999 Explorer EB 4.0 SOHC
1999 2 wheel drive 4.0 SOHC EB. 237,000 miles
Just replaced Plugs, wires, Intake manifold Upper & Lower gaskets, changed oil & filter and replaced fuel filter (old one said 09/01 on itso has likely got 200k on it!).
Also cleaned throttle body, MAF and IAC.
Car is much peppier BUT has very rough idle and stumbles under load (up hill). At steady 50 MPH not too much problem but you can still definitely feel a "miss". No codes after 50-60 mile of driving.
I'm real meticulous when doing these jobs and have also gone back to check my work. Everything "appears" to be good but the problem was not there before I did all above and it had two old plugs which I think may have been original to the car! Both center electrodes burned away with a 90 + thou gap but apparently still firing.
The ONLY "problem" is that during the work, a small wire has come detached and I can not find where it belongs. It's PURPLE/WHITE, comes in to the engine bay, through a hole in the firewall, just below the throttle cable and is about 24" long. Will reach about as far as the steering resevoir. It comes through the firewall in a black wire protection casing with a second wire. The second wire detours about a foot out from the firewall, over towards the driver's side fender then heads to a plunger switch in the front driver's side corner of the engine bay, which is actuated when the hood is opened. I'm assuming the plunger switch is part of the alarm system (VIPER).
Because the mystery PURPLE/WHITE wire comes through the firewall together with this second "plunger" wire, I HAD assumed the P/W wire was also part of the alarm system? Perhaps correct, perhaps not?
The end of the P/W wire is clean and appears to have been soldered.
Any input/advice on either/both the hesitation &/or the purple/white wire would be very much appreciated. Thanks.
Just replaced Plugs, wires, Intake manifold Upper & Lower gaskets, changed oil & filter and replaced fuel filter (old one said 09/01 on itso has likely got 200k on it!).
Also cleaned throttle body, MAF and IAC.
Car is much peppier BUT has very rough idle and stumbles under load (up hill). At steady 50 MPH not too much problem but you can still definitely feel a "miss". No codes after 50-60 mile of driving.
I'm real meticulous when doing these jobs and have also gone back to check my work. Everything "appears" to be good but the problem was not there before I did all above and it had two old plugs which I think may have been original to the car! Both center electrodes burned away with a 90 + thou gap but apparently still firing.
The ONLY "problem" is that during the work, a small wire has come detached and I can not find where it belongs. It's PURPLE/WHITE, comes in to the engine bay, through a hole in the firewall, just below the throttle cable and is about 24" long. Will reach about as far as the steering resevoir. It comes through the firewall in a black wire protection casing with a second wire. The second wire detours about a foot out from the firewall, over towards the driver's side fender then heads to a plunger switch in the front driver's side corner of the engine bay, which is actuated when the hood is opened. I'm assuming the plunger switch is part of the alarm system (VIPER).
Because the mystery PURPLE/WHITE wire comes through the firewall together with this second "plunger" wire, I HAD assumed the P/W wire was also part of the alarm system? Perhaps correct, perhaps not?
The end of the P/W wire is clean and appears to have been soldered.
Any input/advice on either/both the hesitation &/or the purple/white wire would be very much appreciated. Thanks.
