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#1 |
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Registered User
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High idle after using cruise on interstate
I notice that my idle increases by 75 or so rpm after a run down the interstate at 65 - 70 miles per hour with the cruise set.
When I stop the engine and restart it the idle drops back down until the next time I use cruise. What could be causing this? Ted
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2001.5 2500 QC H.O. 6spd. 4x4 , 2" Rough Country leveling kit, spray-in bedliner, Westach FP Gauge, pillar mounted 3 gauge pod, 305/70-16 Wild Spirit ATs on Pro-Comp 1069s, Bushwhacker Extend-a-Fender flares |
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#2 |
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Registered User
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mine will go up 100-150 after a long run on CC. its sorta strange but has not left me stranded I dont know if its in need of a reflash or what, but I wont take my truck back to the dealer for nothing. my truck is not stock anymore.
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1990 W250 bought new in Nov. 89 performance built 727 and torque converter , high miler 700 k heavly bombed kelderman air ride 2001 2500 HO 6spd 4x4, Engine brake , mad.ecm mach1.6s fass,SBC 4" turbo back exhaust BHAF fluid damper,ARP head studs, DSS, Fast cools.snow w/m, wife says trucks fast enough:( 335 hp/800 tq) How many of your rights are you willing to give up before you feel totally safe ?Wake Up People vote EVERYONE OF THE BUMS OUT OF OFFICE! |
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#3 | |
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Registered User
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Quote:
Ted |
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#4 |
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Registered User
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When I had this problem the Pacbrake would not engage. This all tied into the APPS going out on me. If you have no other problems don't worry about it. I found away around the exhaust brake problem and put up with the idle issue for 4 years. When I started having dead pedal issues on a trip I replace the APPS and everything is fine now.
Stan
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01.5 3500 ETHDEE 4X4 3.55 diff, Patriot Blue, Lost the dually box replaced with custom steel deck (black when freshly painted), Edge EZ, RV275's, Southbend clutch, Pacbrake, Pinnacle 4" turbo back exhaust, Bilstein 5100 shocks, RideRite airbags with onboard air, Fast Cooler, Mag Hytec rear diff cover, Isspro Pillar mount EGT, Boost, Fuel gauges, Scotty's smart fuel line kit, BD 2 wheel low kit, Light Force lights |
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#5 |
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Registered User
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x2 on the APPS. I had the exact same issue - high idle after using cruise. I replaced my APPS and the problem went away.
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2001.5 Dodge Ram 2500 H.O., quad cab, 4x4, 6 speed manual Quadzilla XZT+ 4" Turbo back MBRP exhaust Bosch 300 injectors (rv275) BHAF Do it yourself Walbro lift pump kit with big line kit between IP and filter Westach electric FP gauge Silencer ring sitting in garage next to stock air box Replaced VP-44 at 156K - 2nd VP-44 at 171K DSS Carli Starter System leveling kit |
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#6 |
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Registered User
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It's totally normal. Do a search on it an you will see that the PCU/ECU has numerous idle speeds based on countless paramaters. You're experiencing the "cruise idle" that happens sometimes after cruising at highway speeds....
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<---My previous oil burner "Bombs delivered on time or your money back!" ------------ '01 2500 SLT Laramie QC LB 4x4 Auto 3.54 gears 230K miles. Goerend w/billet input shaft/ low stall TC/ 2,3,4lockup+switch, 4" exhaust, Edge Juice with Attitude, Superchips 3705 Tuner, Walbro 392 with Swagelok bypass, Yokohama Geolandar 315/70R17s on 2006 H2 LE Alcoa wheels, '03 front brake conversion, PSC Steering Stabilizer. '09 Northstar 850 SC XB popup slide-in camper Semper Fidelis! |
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#7 |
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Registered User
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Had the exact problem however mine would idle to almost 1200 RPM. Mine was the APPS and after replacing it that stopped but it would still idle up just a little bit after cruise was engaged for a while or just after running at highway speeds for a while. That is normal. Ive heard that its something to do with all the sensors readjusting and it just takes a second??? but it is normal.
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2001 Edge EZ BHAF, straight pipe lifted a little, 35s 5 speed |
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#8 |
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Registered User
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Thanks everyone. I can live with the high idle for now :-)
Ted |
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