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Related Medium and Heavy Trucks Questions
I have a 2001 mack ch 613 the gear on the accessory drive
i have a 2001 mack ch 613 the gear on the accessory drive for the oil pump has moved over causing oil preasure loss. is there a set screw holding it in place.if not how do i repair … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Can't get the starter teeth to clear the ring gear on 118
Can't get the starter teeth to clear the ring gear on 118 gallon with in line 6 Cummins … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Replaced exhaust manifold gasket, truck ran fine for a
replaced exhaust manifold gasket, truck ran fine for a couple of minutes, then it got a terrible miss in it, raw fuel, upon shutting it off, all sorts of pre ignition, also while running, tried to ble… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I am removing fuel injection pump from a 93-mack E7-400.
I am removing fuel injection pump from a 93-mack E7-400 . brought it close to #1 tdc to line up slot mark on pump. Is that all I have to do to remove frt gear and pump? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,289 satisfied customers
I was on here earlier. Got a 2006 Mack won't start. 2006
I was on here earlier. Got a 2006 Mack won't start. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 2000 mack rd688s E7 I change out the harness to
I have a 2000 mack rd688s E7 I change out the harness to injectors still won't start just crank over everytime i crank it white smoke come out … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,289 satisfied customers
Have a Mack e7 427. The fan clutch is locked in and we were
Have a Mack e7 427. The fan clutch is locked in and we were diagnosing it. checked solenoid fine. Went to eck … read more
Keiphun Sowell
Keiphun Sowell
AutoDiesel Technology
1,310 satisfied customers
1993 Mack e7 300 engine looses fuel prime to first filter
1993 Mack e7 300 engine looses fuel prime to first filter have replaced lift pump, spring was brke in old pump but still loosing fuel to first filter … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,289 satisfied customers
I have a Mack CL chassis with an ISX Cummins, T318 Mack 18
I have a Mack CL chassis with an ISX Cummins, T318 Mack 18 speed transmission. The tranny is jumping out of gear. History-the truck originally came in with the bell housing bolts loose which egg shape… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Are 1992 and 1998 e7 350 hp turbochargers interchangeable?
are 1992 and 1998 e7 350 hp turbochargers interchangeable? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I am changing injection pump on 1995 mack E7 454 engine how
I am changing injection pump on 1995 mack E7 454 engine how do I time injection pump before removal .… read more
tkman55
tkman55
Shop manager Trailer Refrigeration shop
138 satisfied customers
I have a 1997 mack truck it has a e7-350 engine it starts fine
I have a 1997 mack truck it has a e7-350 engine it starts fine after a short time a yellow light comes on malfunction electronic comes on low idle runs good when I speed up it starts to miss and smoke… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
We have a customer that has a 2006 cv 713 mack dump truck.
We have a customer that has a 2006 cv 713 mack dump truck. He parked the truck on Thursday of last week and it was running fine. He tried to start it on Monday and the truck would start and run very s… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Hello, I have been reading your answers, and I am happy with
Hello, I have been reading your answers, and I am happy with your correspondence with customers. I have a 93 Mack E7 Mechanical engine that developed low oil pressure shortly after replacing a cylinde… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
99 mack CH613 E7, problem occurs when RPM is applied , feels
99 mack CH613 E7, problem occurs when RPM is applied , feels like it starts missing, buy not like typical fuel missing, more like electrical cutting out. Won't do it while in idle, only when RPM is ap… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Hello. I have a 1999 Mack Ch613 with an E7 non-etec engine
Hello. I have a 1999 Mack Ch613 with an E7 non-etec engine that has an issue. After replacing a blown head gasket, we attempted to startup the engine, but blew the battery. We got a replacement batter… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
2003 MACK MDL DM6906S ENGINE AMI300 VIN 1M2B209C53M029583
2003 MACK MDL DM6906S ENGINE AMI300 VIN 1M2B209C53M029583 PLEASE HELP WITH A PHOTO OR DIAGRAM OF THE FRONT GEAR TIMING.… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 satisfied customers
Need torque specs and the firing order for Mack engine.
Need torque specs for mack engine model e7-350 # 4k0661 for cylinder had-main cap screws-rocker assembly-housing-valves & exhaust & the injector screw. and the firing order please.… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

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I am ASE Master Truck Certified.

Wayne

Wayne

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

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cumminsdr

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Curtis B.

Curtis B.

Technician

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Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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