| Author | Message | ||
     Joseph Bilyk (Denverrover) New Member Username: Denverrover Post Number: 22 Registered: 02-2003 |
I was just quoted 660 for a MAFS. That sounds obsurd. Anyone know a cheaper place or way to clean this?? thanks JB | ||
| Robert Sublett (Rubisco98) Senior Member Username: Rubisco98 Post Number: 743 Registered: 04-2002 |
I don't know prices on those things but it does sound absurd. Give Nathan a ring at http://www.discountrovers.com and he'll let you know how much he can save ya. | ||
| John Hook (Hookdesign) Member Username: Hookdesign Post Number: 52 Registered: 12-2002 |
Or call any junkyard that has Discos and get a used one. I got a used one for $75.00 with a six month warranty that it would work. I think the rebuilt ones Nathan has are $250.00 or so. | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1172 Registered: 02-2002 |
Why do you think you need one? The MAF code is a very common code to find on the diagnostic readouts, yet I have never had it actually be the MAF that was bad. Many other faults are read by the ECU as being an MAF fault. I would suggest further diagnostics before spending big bucks. | ||
| Joseph Bilyk (Denverrover) New Member Username: Denverrover Post Number: 23 Registered: 02-2003 |
Paul, I know that we have discussed this before. I am getting a code relating to the MAF...my main problem is the idle of my truck, it is horrible. But only when the weather is warm. When it is cold outside the idle is fine. I have cleaned stepper motor, new plugs, wires, no codes about fuel temp or TPS. I am going to replace the stepper motor this weekend (I finally got the napa part number). I don't think that it is the MAF either, unless the heat is causing a failure. Thanks for your input. Joe B | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1175 Registered: 02-2002 |
Joe: Spend $100 and replace both the fuel temp sensor and the coolant temp sensor. One or both of these may be causing your problem. Let me know how the IAC swap works out, I need a gasket for mine-NAPA u-joint boxes make fine gaskets... | ||
| Grant Lawson (Grant) Member Username: Grant Post Number: 46 Registered: 01-2003 |
Hey, what is MAFS? I got problems too, beside the drivelin vibe, now i have a check engine and a rough idle and acceleration vibe. The air filter was clogged with rust proofing oil -changed it, a plug had vibed loose(weird)-tightened them all up, truckis running now but rough?? check engine light is on- will check tonight.Bad gas?? black exhaust when I rev up...... What do i do now? Any insights? | ||
| D. Chapman (1hank1) Member Username: 1hank1 Post Number: 83 Registered: 02-2003 |
If you had a loose plug it may have fouled. Try changing the plug that got loose and see if that helps. Also check your wires for rotting and heat burns. | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1177 Registered: 02-2002 |
Grant: First off, replace the air filter, secondly, replace plugs, wires, cap, rotor, take two aspirin and check back in the morning. I say this with some degree of seriousness. When was the last time your engine was tuned up? If it has been awhile, let's get the basics out of the way. You didn't say what year your truck is, but if it has the diagnostic readout beneath the passenger seat, check to see what numbers it is displaying. As for the vibes, lifted? How much? How many miles on the Universals? Roto-flex? Condition of roto-flex? Gots to know before we can do anything more, but not to worry, we'll get you going. Peace, Paul | ||
| Rans (Rans) Senior Member Username: Rans Post Number: 435 Registered: 08-2002 |
MAFS = Mass Air Flow Sensor | ||
| Grant Lawson (Grant) Member Username: Grant Post Number: 47 Registered: 01-2003 |
thanks , it is a 97 XD. u joints all around(no rotoflex) changed the front/front, it was shot, haven't noticed a prob with the other three, but there is a whine. wires and plugs are 2 weeks new, and a new filter went in yesterday. the plug that was loose looked good. "cap and rotor"?? I have a med lift(OME). and am looking at my smashed steering dampner, but do not think it is much of a prob. my friend, has a diagnostic computer, i will check out the codes tonight. What is the MAF, and the IAC? | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1178 Registered: 02-2002 |
Cap-rotor... not much of a concern on a GEMS motor... MAF, mass airflow sensor IAC, idle air control valve. Check for codes as that will show you the condition of the engine management system. As for the vibes, replace the rest of the universals, they are cheap and very often the cause of vibes, along with tire balance, phase of the moon, etc. Peace, Paul | ||
| Grant Lawson (Grant) Member Username: Grant Post Number: 48 Registered: 01-2003 |
thanks, more to follow tomorrow.... I have some leakage from the front of the rear diff where the drive shaft.Seals? bearing? instructions? Napa part #'s? | ||
| Dean Brown (Deanbrown3d) Senior Member Username: Deanbrown3d Post Number: 585 Registered: 02-2002 |
Joseph, Have you cleaned the MAFS? If not, use a volatile solvent based cleaner, one without any oils that may leave a residue. I think ether is the thing to use, but not sure what I used once. There's a little filament inside, so if you've got some crap on it or got it wet, it may just need cleaning. Your drive is absolutely dependent on this. Dean | ||
| Joseph Bilyk (Denverrover) New Member Username: Denverrover Post Number: 24 Registered: 02-2003 |
Dean I'm planning on cleaning all this Sat when I replace the IAS. Do you recommend an electrical contact cleaner?? Or brake parts cleaner?? Did you have a good experience with your truck after cleaning the MAF?? Basically you pull off the air tube and clean stuff up?? Joe B 96 Disco 4.0 | ||
| Dean Brown (Deanbrown3d) Senior Member Username: Deanbrown3d Post Number: 587 Registered: 02-2002 |
I think electrical cleaner is what I used. Initially I tried spraying WD40 LOL - big mistake. You can't get to it (if its like the D2 version) but you can spray all over it through a wire mesh. Undo it from both sides. When I flooded the air filter once, I had to drive home without one, so we put a cut-out sponge foam sheet in front of the MAFS before re-attaching it to the intake. The disco spluttered all over the place, so I guess the air flow amount and/or pattern is important too. Dean | ||
| Grant Lawson (Grant) Member Username: Grant Post Number: 49 Registered: 01-2003 |
I got some codes- 300, 302, 1187, 1316. now what? | ||
| Joseph Bilyk (Denverrover) New Member Username: Denverrover Post Number: 29 Registered: 02-2003 |
Couldn't find the IAS motor to save my life, seriously. Looked at all the Delco IAS motors at the biggest Chevy dealer in Denver...they were CLOSE but not exact. The thing that I noticed about them is that they all have a sleeve that is just slightly wider than my landrover part & just won't fit into the hole. I cleaned my IAS again & it seems to be running ok. I cleaned my MAFS & it sputtered until it dried out. When I finally got it started up the idle was very, very high (see post). So I disc the battery to reset stuff, let it sit, then drove over 40mph..seems to be fine now. We'll see though when it gets a little warmer...that is when the problem starts. I saw a post today about a "module amplifier" which is sparking my attention. Paul any thoughts about this?? My problem seems very electrical...like someone said earlier heat does very strange things to electronics. Does anyone know the job or function of this "module amplifier?" Still no codes. ??????? Joe |
