Last post on Mar 12, 2013 at 1:19 PM
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Jeep Wrangler, Scheduled Maintenance, Steering, Suspension, Tires, SUV
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#668 of 1886 Re: 1997 Wrangler losing power and missing [tidester]
Oct 18, 2006 (5:39 pm)
Autozone is unable to run a diagnostic unless the check engine light is on. So I took the opportunity to stop in at Terraflex (formerly MEPCO, all Jeep, all the time...) in Salt Lake and I had a chat with the head service tech. He 99% certain that because nothing is activating the check engine light, I have an injector going bad. Once I run for a while, it heats up and aggravates the bad injector. He says he'd put money on a bad injector causing the occasional single cylinder misfire. This weekend we'll run a diagnostic history to find the misfiring cylinder, replace the injector, and according to Terraflex, I'll be out the door for just over 2 bills. I'll post the rseults for future reference. Thanks.
#669 of 1886 Re: 1997 Wrangler losing power and missing [1utahman]
Oct 18, 2006 (7:33 pm)
I'll post the rseults for future reference.
We're looking forward to your report!
#670 of 1886 Why can't we get pressure back after replacing the brakes/rotors/calipers??
Mar 16, 2006 (10:06 am)
Last week I took my 97 Wrangler in for an oil change and found out that my front brakes were metal to metal. Lucky girl that I am my husband is a mechanic so instead of paying someone else to replace them, I asked my husband to do it for me. Well, he got the new rotors/pads/calipers on and then I did my part by helping him bleed the brakes. For some reason after bleeding the brakes we still weren't able to get pressure back in the pedal when the ignition was turned on. My husband ( a few expletives later) thought that maybe the master cylinder needed to be replaced so we did that and still no luck. A few months back he had bought and installed a remanufactured master cylinder on his brothers truck that ended up being defective so we thought that maybe that was the problem. SO, I took it back and picked up a new one yesterday. So here were are we new rotors/calipers/pads/mastercylinder and no pressure when I push on the brake pedal. At this point my husband is absolutely frustrated because he is a mechanic and feels totally incapable at this point because this was such an easy task and it still isn't complete. Has anyone had a similar problem with their Wrangler? Any suggestions on what to try next? Thanks
#672 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [glenswife]
Mar 16, 2006 (10:47 am)
When bleeding the brakes did you start with the brake the farthest away from the master cylinder? Did your husband bench bleed the master cylinder before installing it?
#673 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [bvcrd]
Mar 16, 2006 (11:02 am)
Yes, we started with the farthest, working our way to the closest. I'm not sure what you mean by bench bleeding the master cylinder. Could you elaborate?
#674 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [glenswife]
Mar 16, 2006 (11:29 am)
Certainly. The master needs bled because there is air in the system even though you fill up the reservoir with fluid. There should be bleed ports where he can attach a small hose and route this hose back into the reservoir. Now, fill with fluid, and while pushing in on the rod on the back, you will see fluid and air coming out, back into the reservoir. Now the thing is primed and no air is present. This should be done while the MC is off the car. But, you said that there was not pressure before he even took the old one out. That could have been because the old one was shot. He will need to re-bleed everything after bench bleeding the MC because he may have forced new air into the brake lines.
#675 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [bvcrd]
Mar 16, 2006 (11:52 am)
Thanks, I will ask if he did that.
#676 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [glenswife]
Apr 27, 2006 (9:54 am)
You mentioned earlier that your husband replaced the rotors, pads, and calipers, right? On many cars the calipers are interchangeable right to left and vice versa. The problem is the bleeders are in different places on the left and the right caliper. I have seen where reversing the calipers (right to left), the bleeder ends up on the BOTTOM of the caliper. When that happens, you can bleed the sysstem all day long and you won't get the air out of the system. So, check that and if the bleeders turn up to be on the bottom of the calipers, simply swap the right and left sides, and that should put the bleeders at the top of the caliper. When they are at the top, you should be able to easily bleed the system.
#677 of 1886 Re: Why can't we get pressure back after replacing the brakes/rotors/calipers?? [glenswife]
Jun 14, 2006 (6:30 pm)
I have the same promblem with my 01 wrangler, except I have pressure when I first hit the brakes and then the second time my brakes hit the floor. Did you find a solution to your problem and if so please help.