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  1. TJ Technical Discussion
    Hey All, Happy New Year! So my 2002 TJ (4-cyl / Manual tranny / 4in lift / 90k miles) has been running like a charm but I'm starting to run into a few things and am hoping you can answer my questions... I suppose I should add in the note here that I bought it used about 5,000 miles ago and...
  2. YJ General Discussion
    Hello everyone, brand new user here. I've been stalking the forums for a while since my dad and I are preparing to try and start his 89 YJ that has been sitting in the garage for 7 years. It has a 4.2L engine WITH a Mopar MPI Fuel Injection conversion. We already know what we have to do for the...
  3. JK Technical Discussion
    Started running a P0032 (Oxygen Heater Control Circuit High) code about a week ago. This morning, I got a flashing CEL, ran the codes, and a P0172 (System too Rich, Bank 1 System 1) is on, in edition to the original P0032. I have a few suspicions, but what do y'all think may be causing this...
  4. YJ Technical Discussion
    Was cruising along just fine when engine just died. Cranks over just fine, but won't fire. Only lights I get on dash are Check Engine and the Shift Light, both on constant. Tried pulling codes (using the 3x ignition on/off), but I get absolutely nothing from that. Both lights still on...
  5. YJ Technical Discussion
    I have an 88 jeep wrangler. 4.2 straight six. Been driving and fixing it for twenty years but I'm stuck. Driving the other day when I lost power and she stopped as if she was out of gas. I was not. I just replaced fuel filter, mechanical fuel pump and part of the input line. Still not getting...
  6. TJ General Discussion
    The wife was driving the 99 sport home from work on Thursday, and I got the dreaded phone call. She tells me that the jeep is slowing down and it is hard to steer so she was going to go ahead and pull over to the side of the road and wait for me to get there and hook up the tow bar to my truck...
  7. TJ Technical Discussion
    I have a 98 TJ with approximately 130,000 miles. Recently - within the past three months - the Jeep has developed a hard start. Here are the issues: 1. Engine catching and ignition takes no less than 2 turns of the key 2. Once started, engine has rough idle with hesitation and vibration for...
  8. TJ Technical Discussion
    I will try to keep this short and to the point. I have a 97 TJ with 120K miles, 4 liter engine When cold it starts right away, when hot it will crank for ever with out starting. If I cycle the key off/ on several times it seems to build up pressure (I can hear the fuel pump cycle) and then...
  9. TJ Technical Discussion
    Hey.. I just checked my fuel pressure and it is rapidly fluctuating between 42 psi and 50 psi while it is idling. My repair manual says the pressure should be between 44 and 54 psi. Is the pressure supposed to be fluctuating, or is it supposed to be steady? Also, if it is supposed to be steady...
  10. TJ General Discussion
    I've got an 05 TJ with just over 60K miles on it, and at the dealership for the service they recommended a fuel system cleaning ever 30K miles saying that it would improve performance and remove carbon buildup. I'm looking to do more of the services myself to save money, but I'm a newb with...
  11. YJ Technical Discussion
    Please..SOMEbody...My '92 YJ had fuel problems. I replaced the elect. pump, sock, and rubber hose @ the sending unit (easiest fuel tank I ever had to remove). Replaced the fuel pressure regulator (a whoppin' $60+tax)..put on a new filter, checked all vac lines, pulled injectors and soaked them...
  12. YJ Technical Discussion
    I have a 4 cyl '87 Jeep Wrangler that quit running while I was driving down the road and now will turn over, but will not start. No power is getting to the fuel pump (checked with voltmeter at the fuel pump connector by the fuel tank). Replaced the fuel pump relay under the hood by the...
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