| Author | Message | ||
     charles pastrano (Charles) Senior Member Username: Charles Post Number: 257 Registered: 08-2002 |
When the CDL is locked in High or Low and I start accelerating up a climb my 97DI just revs high then low kind of like fuel spurts while my foot is on the gas. I can get my front end up but when my rear starts to climb no dice. It drives normal in regular high on the road. Any ideas? Charles | ||
| Leslie N. Bright (Leslie) Dweb Lounge Member Username: Leslie Post Number: 2367 Registered: 02-2002 |
"I start accelerating up a climb my 97DI just revs high then low kind of like fuel spurts while my foot is on the gas" Charles, Could you clarify that bit? My first impression was that it wasn't fully locked, and you were slipping out of gear, but that really doesn't seem to be the case. I think what you've said is that it is bogging down on hill climbs when locked. Does it bog down on hill-climbs when unlocked? Hmmm........... -L | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 258 Registered: 08-2002 |
I push the gas and as the truck goes up the hill the rpms go up and down as if I am pushing and releasing the gas pedal. I didnt try unlocked. | ||
| Paul D. Morgan (V22guy) Dweb Lounge Member Username: V22guy Post Number: 1693 Registered: 02-2002 |
I am thinking of a fuel delivery problem during your climb. Much more info is needed. Is your CDL light on? If so, are your hearing any metal noises? Not Quiet Riot metal  but gears slipping? How steep is the hill? Compared to that when you are on the road? How does your XD run on level ground with the CDL locked? Is your XD kicking out any codes or any lights on the dash during this "high to low rev fuel spurting?" Paul | ||
| Greg (Gparrish) Senior Member Username: Gparrish Post Number: 1284 Registered: 04-2002 |
And, does it do the same thing on a hill climb when the CDL is not locked? If so, I think I would agree with Paul that the incline is affecting the fuel delivery somehow. | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 259 Registered: 08-2002 |
I am thinking fuel delivery???? My CDL light is on but no metal grinding. My check engine and ABS has always been on. Have'nt tried the climb unlocked. I am going to get the codes read again. The hill is pretty steep. Thanks Charles | ||
| Doug Campbell (Dougc) New Member Username: Dougc Post Number: 17 Registered: 12-2002 |
Charles--bad fuel pump? DougC | ||
| Brian Friend (Brianfriend) Senior Member Username: Brianfriend Post Number: 1094 Registered: 09-2002 |
Maybe even check your mass air flow. | ||
| Leslie N. Bright (Leslie) Dweb Lounge Member Username: Leslie Post Number: 2376 Registered: 02-2002 |
My check engine and ABS has always been on Charles, it really sounds as if it's something to do with your engine when it is underlaod from trying to pull the Rover up a hill. See what it does when unlocked in high range, going up a really steep hill.... it may take more hill to replicate, but I expect that it should be possible to replicate the problem: I don't think the CDL would be the root of the problem. I could be wrong, but, I don't see it if it is.... FWIW... -L | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 260 Registered: 08-2002 |
You are right Les. It happens only under stress. I was out at the ranch gave it gas both locked and unlocked it happens. Again only under sress. High driving and accelerating are fine. | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 261 Registered: 08-2002 |
Thats highway driving. | ||
| Leslie N. Bright (Leslie) Dweb Lounge Member Username: Leslie Post Number: 2380 Registered: 02-2002 |
It's not the CDL then, it's either a fuel-supply problem (a partially clogged filter, a partially clogged fuel injector, a problematic fuel pump), or it's electrical... a '97 is distributorless, so it's not the rotor needing replacing, but old wires, old plugs, TPS (maybe).... How long since plugs & wires & filters were changed? Just some directions to start to look..... -L | ||
| Yo!Adrian (Adrian) Member Username: Adrian Post Number: 52 Registered: 05-2002 |
Try taking your foot off the brake!! LOL j/k I’d like to help out when you find out what it is…since I’m sure I’ll have to do the same to mine one day. Later. | ||
| Kyle Van Tassel (Kyle) Moderator Username: Kyle Post Number: 388 Registered: 11-2002 |
Bad motor mount and the MAf is coming unhooked from the hose. Either that or there is a split in the hose allowing air to enter when the engine cocks up.. Kyle "Blow me" | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1849 Registered: 02-2002 |
Can it be replicated on level ground? Kyle might be on to something, although I'm thinking more along the lines of crank position sensor (been studying up on the distributor-less engines). Maybe the coil pack is striking the bulhead and grounding. | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 262 Registered: 08-2002 |
In sand it can be duplicated on level ground. Plugs, Wires, Fuel filter changed regularly. On the street it revs like normal. I will check the hoses when it stops raining. What does the TPS do? If it was fuel pump would I have problems starting or accelerating on the street? Thank you all for the start. Charles | ||
| Yo!Adrian (Adrian) Member Username: Adrian Post Number: 54 Registered: 05-2002 |
Kyle, you mention motor mounts...that sounds more like what may be wrong with mine (shivers). What do you think? | ||
| Yo!Adrian (Adrian) Member Username: Adrian Post Number: 55 Registered: 05-2002 |
Charles, check this out...sounds like your issue, TPS related: ../17/3415.html> | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 263 Registered: 08-2002 |
Thanks Adrian Ill try it. | ||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 270 Registered: 08-2002 |
God Dam Kyle you are a fucking genius. This is the third time you have saved my ass. If you are ever in San Antonio or I meet you on a run somewhere- Dinner and Beer is on me. The hose after the MAF was popped off at the bottom. Thanks All Charles |
