96 Isuzu Rodeo Gas Mileage Problems

[Ramblin Fever]

Hey, speaking of that Rear ABS sensor - can you tell the difference with or without the system working?

Reason I ask, is this truck was blowing that sensor out about every 1 1/2yrs - finally 2yrs ago, when it went out for the 3 or 4th time, I never replaced it.

But now I can't remember if I ever noticed a difference or not; how much IS the sensor?

And, IIRC, it's mounted on the rear axle?

Almost forgot to answer your ?? - yes, I would think if you were overfull in your crankcase that it would leak out the valve covers - they seem to be our weakest gaskets, which is ok, cheap to replace and inexpensive repair.

[surferfletch]

I haven't attempted to see if there is a difference in the braking with the lights on. It's the same for normal braking obviously. The part listed for $125 on the NAPA site. I think it was $75 at St. Charles. I'll check. The parts guy at St. Charles wanted to call it the speed sensor instead of the ABS sensor. As far as I know, the sensor in the top of the rear pumpkin is the ABS sensor. Early ABS was only in the rear. There are no wheel sensors. Whatever. I'm hoping it comes out easily. I read here once that the end inside the housing can become swollen and difficult to remove without taking the cover off. If that's not a problem, it should be super easy. I got motivated to do it coming back from that trip to Sarasota. Seems the light came on a little more frequently. May have been the highway speeds or the moisture from the heavy rain. I'll see if it solves it.

[surferfletch]

$76.35. I forgot to ask about the internet discount, but I'm sure I didn't get charged shipping...

[Ramblin Fever]

Yeah, it's the ABS sensor that's out on mine. So is it inside the pumpkin?

[surferfletch]

It's right on top. There is one screw holding it to the pumpkin. There is a short wire to a plug. There is an o-ring sealing the hole in the pumpkin. I'm hoping it's a 5 minute job.

[surferfletch]

Well the lights are back, but the mileage contimues to creep up. The daughter reports 22 mpg at today's fill up. I'll have to double check the math, though!

[Ramblin Fever]

Sorry, but what lights? The CEL light? What code do you show?

[surferfletch]

Just the RrABS and BRAKE lights I was hoping to get rid of by changing the sensor. I've never had a CEL with the Rodeo...knock on wood...

[Ramblin Fever]

Check your brake fluid level.

Also, on the 4x2 Rodeo's this can be a signal for your alternator.

[trooperbc]

Originally Posted by surferfletch

Just the RrABS and BRAKE lights....

according to smiley in a 4x4 wire post:

Originally Posted by smiley 4x4wire post

In my experience: Glowing 'ABS' + 'Brake' lights = A Bad Ground - or a Loose Battery Terminal.

Also: Glowing 'Brake' + 'Battery' + '4x4' lights = A Bad Alternator.

at this thread
http://www.4x4wire.com/forums/showfl...5&o=14&fpart=1


maybe it's a lead you can follow


hth


//bc

[surferfletch]

I topped up the brake fluid several weeks ago. I think the rear pads are getting thin again. No battery light. I hope it's not the alternator acting up again.

[surferfletch]

I will check all of my electrical connections, too. Thanks!

[Ramblin Fever]

You know just stating my experiences with the alternator, my battery light never came on when my alternator croaked either time.

It only came on when the battery itself was really weak, which was 2 days after the alternator croaked the last time. No one had an alternator in stock, so I had to run the truck solely on the battery alone for 2 days - it ran too, just needed help starting from a jump-starter.

Course the battery croaked that same week as well - but they were both over 5yrs old anyway.

Wonder if you picked up a bad Rr abs sensor.

[surferfletch]

I suppose that's a possibility, too. I'm going to let it ride for awhile and see what happens.