Cruise control surges

From : peter

Q: diesel diesel diesel. now with that out of my system talk to a dealership and find one that will let you test drive one over the weekend to see what kind of mileage you get. sure you cant try it with your 5th wheel on it but itll give you some kind of idea. also try one in similar circumstances with the diesel. after going from a 98 1500 360 extended short box 4x2 to a 02 2500 cummins regular output not the ho 4x4 extended long box and getting better mileage than the 98 im sold on diesel. i dont pull much or often but when i do its infinitely better than the old gas one. if you get the diesel id recommend gauging it out meaning installing a fuel pressure gauge to see what pressure your injector pump is being fed; if the lift pump goes bad it can eat your injector pump based on my experience with my 02 boost gauge exhast gas temp pyrometer gauge transmission temp oil temp and differential temp gauge so you know what its doing. i hear a lot of suggestions of running anything to help lubricate our americanized dry fuel low sulfur fuel; i.e. low lubricity; so use some marvel mystery oil or some of the ill get this wrong power service or whatever diesel kleen/anti-gel whatever additive to keep the fuel system in top shape. the stuff is dirt cheap and the extra power and mileage youll get out of that diesel engine should more than make up for the little extra effort youll put into it. thats what i think. hth --hc .

Replies:

From : greg surratt

i finally found the speed control it is behind/underneath the front drivers side headlight has a part number of 04707286af- reva 64469d 1820g. it looks like it is riveted in it would be exposed to water should it rain i might try making it water proof some how. this number matches the link that i found. thanks everyone. my guess is that the relay or speed control is not your ploblem. water ingress is. once you find the relay carefully find the temperature sensor and carefully examine the wiring harnesses and parts for water penitration. steve whenever it rains the engine light comes on my dodge grand caravan and sometimes the radiator fans continue to run after i turn off the engine. they 2 fans will run until the battery is dead. it never happens when it is not raining. i swapped a couple of the relays around and the problem did not show up again. yet a couple of days ago the engine lite came back on coming back to dallas from east texas in heavy rain. this time the radiator fans did not continue to spin and run down the battery when i turned the engine off yet by the time i got home it was not raining. i took the van to autozone and they read the computer code for me. they did not know what it means. in a previous post i was told it was the radiator relay under the aircleaner box but i cannot see any relays underneath there. all the relays appear to be beside the battery and a few under the dash yet there is nothing labeled radiator fans in the bank of relays. searching https//www.rockauto.com i did find some relays that almost look like the ones in the relay bank next to the battery. but what caught my attention was the one that looks like http//www.rockauto.com/ref/smp/smpdetail2.htmlry330.jpg it is labeled engine cooling fan relay i am wondering if this is mounted on the chassis somewhere maybe under the air filter box as i was told earlier. i have 2 questions 1. does the engine cooling fan relay mount on the chassis and if so where is it located can i see it without removing the air filter box. 2. what does the code below indicate is wrong. this is what the autozone ticket says troublecode obdii alpha p code p1491 secondary switch solenoid circuit mulfunction any ideas thanks in advance... -- john behneman john dot behneman at gmail dot com .

From : peter

on wed 30 mar 2005 171158 -0500 roy roy@home.net wrote good idea! i wasnt here for the big day but thanks denny.. good job! note to self when in baja dont go into town when the gringos are on spring break and the mexicans are celebrating easter.. wow! ya feeling your age bro roy only up here... i feel a lot younger in baja... im a junior down there..lol mac please remove splinters before emailing .

From : jay smith

this is a multi-part message in mime format. ------=nextpart000053401c535e0.8e14a030 content-type text/plain; charset=iso-8859-1 content-transfer-encoding quoted-printable thanks! that could be it i generally keep my foot on gas just until = after pressing set. possibly the previous owner used to take foot off = the gas when setting cruise... peter if you set the cruise with your foot of the gas here it the long = answer from the dodge manual for my 02 dakota. overshoot/undershoot if the vehicle operator repeatedly presses and releases the set button = with their foot off of the accelerator referred to as a lift foot = set the vehicle may accelerate and exceed the desired set speed by up = to 5 mph 8 km/h. it may also decelerate to less than the desired set = speed before finally achieving the desired set speed. the speed control = system has an adaptive strategy that compensates for vehicle-to-vehicle = variations in speed control cable lengths. when the speed control is set = with the vehicle operators foot off of the accelerator pedal the speed = control thinks there is excessive speed control cable slack and adapts = accordingly. if the lift foot sets are continually used a speed = control overshoot/undershoot condition will develop. to unlearn the = overshoot/undershoot condition the vehicle operator has to press and = release the set button while maintaining the desired set speed using the = accelerator pedal not decelerating or accelerating and then turning = the cruise control switch to the off position or press the cancel = button if equipped after waiting 10 seconds. this procedure must be = performed approximately 10-15 times to completely unlearn the = overshoot/undershoot condition. every time i press switch on cruise control i.e. press set button = the=20 truck would accelerate 5-10mph. is this normal its annoying as = hell and=20 other vehicles ive driven dont do this. can this behaviour be = changed =20 dodge durango 99 5.9l =20 peter=20 =20 ------=nextpart000053401c535e0.8e14a030 content-type text/html; charset=iso-8859-1 content-transfer-encoding quoted-printable !doctype html public -//w3c//dtd html 4.0 transitional//en htmlhead meta http-equiv=3dcontent-type content=3dtext/html; = charset=3diso-8859-1 meta content=3dmshtml 6.00.2900.2604 name=3dgenerator style/style /head body bgcolor=3d#ffffff divfont face=3darial size=3d2thanks! that could be it i generally = keep my foot=20 on gas just until after pressing set. possibly the previous owner used = to take=20 foot off the gas when setting cruise.../font/div divfont face=3darial size=3d2/font /div divfont face=3darial size=3d2peter/font/div blockquote=20 style=3dpadding-right 0px; padding-left 5px; margin-left 5px; = border-left #000000 2px solid; margin-right 0px divjay smith <a=20 href=3dmailtojaysmith@insightbb.comjaysmith@insightbb.com/a> = wrote in=20 message a=20 = is21/a.../div divstrongif you set the cruise with your foot of the gas here it = the long=20 answer from the dodge manual for my 02 dakota./strong/div divfont face=3darial size=3d2/font /div divovershoot/undershoot/div divif the vehicle operator repeatedly presses and releases the set = button=20 with their foot off of the accelerator referred to as a =93lift foot = set=94 the=20 vehicle may accelerate and exceed the desired set speed by up to 5 mph = 8=20 km/h. it may also decelerate to less than the desired set speed = before=20 finally achieving the desired set speed. the speed control system has = an=20 adaptive strategy that compensates for vehicle-to-vehicle variations = in speed=20 control cable lengths. when the speed control is set with the vehicle=20 operators foot off of the accelerator pedal the speed control thinks = there is=20 excessive speed control cable slack and adapts accordingly. if the = =93lift foot=20 sets=94 are continually used a speed control overshoot/undershoot = condition=20 will develop. to =93unlearn=94 the overshoot/undershoot condition the = vehicle=20 operator has to press and release the set button while maintaining the = desired=20 set speed using the accelerator pedal not decelerating or = accelerating and=20 then turning the cruise control switch to the off position or press = the=20 cancel button if equipped after waiting 10 seconds. this procedure = must be=20 performed approximately 10=9615 times to completely unlearn the=20 overshoot/undershoot condition./div div /div divfont face=3darial size=3d2peter </fonta=20 href=3dmailtopeter@greatnowhere.comfont face=3darial=20 size=3d2peter@greatnowhere.com/font/afont face=3darial = size=3d2> wrote in=20 face=3darial=20 face=3darial=20 size=3d2.../font/divfont face=3darial size=3d2> every time i = press switch=20 on cruise control i.e. press set button the br> truck would = accelerate=20 5-10mph. is this normal its annoying as hel