1993 mazda b2600I engine knocking

Asked by Nov 04, 2013 at 06:11 PM about the 1993 Mazda B-Series Pickup 2 Dr B2600i Extended Cab SB

Question type: Maintenance & Repair

My 1993 mazda b2600i runs great!  But, if I give more than about 25% throttle, it knocks like crazy and it does not feel like it picks up any faster.  any ideas??

7 Answers

25,305

A couple of things (besides a plain ol' wore out motor): Plugged exhaust/cat: carbon build up on the piston(s): Jumped timing: bad fuel: mis-routed plug wires

1 of 1 people found this helpful.
45

If it idles good, OK, But on acceleration pressure it fails. But it sounds like it needs air, intake to me Just my guess

25,305

Sounds more like a plugged cat.

hmmm. that could me, The car has a new exhaust from the cat back

25,305

A plugged catalytic Converter will cause a backfire condition - lean - no air out - no air in. You could hook up a vacuum gauge and watch how it acts as you increase RPM to say 2500 and hold it there for several seconds - is the reading low or does it fall off at a steady speed? You could disconnect the exhaust at the manifolds and run the engine - noisy but effective. A muffler shop has the proper tools to make a hole in the pipe and measure the back pressure.

would it matter that i dont have any backfiring?

25,305

No.

Your Answer

Add photo

Related Questions

  • 1993 mazda b2600I engine knocking 7 answers

    My 1993 mazda b2600i runs great! But, if I give more than about 25% throttle, it knocks like crazy and it does not feel like it picks up any faster. any ideas??

    1993 Mazda B-Series Pickup 2 Dr B2600i Extended Cab SB

    -

    Maintenance & Repair

  • Mazda 4x4 pickup b2600i 1993 a different version of the 1993 Ford courier 4x4 pickup/ute 1 answer

    Hi wonder if anyone can help, I bought a ford courier single cab 4x4 ute in Australia and I cannot find any manuals for it. I do seem to come across references to the Mazda B-series to be the equivale...

    1993 Mazda B-Series Pickup

    -

    Maintenance & Repair

  • Mazda B2600I truck owners 1 answer

    Okay. We as 2600 owners have all been experiencing bad fuel mileage or other problems with our trucks. I've read that some of you have gone as far as to replace the E.C.M. with no real improvement. Ho...

    1990 Mazda B-Series Pickup 2 Dr B2600i Extended Cab SB

    -

    Maintenance & Repair

  • How many miles can I expect a 1994 mazda b2600i 4x4 to last? 2 answers

    Looking at possibly purchasing a '94 b2600i 4x4

    1994 Mazda B-Series Pickup

    -

    Maintenance & Repair

  • How do I remove the Power Streering belt on a 1992 Mazda B2600i 2.5l 4 answers

    I have a 1992 B2600i and am attempting to replace the Alternator belt but can't figure out how to get the Power Steering belt off... no tensioner pulley and no obvious way to move the Power Steering ...

    1992 Mazda B-Series Pickup 2 Dr B2600i 4WD Extended Cab SB

    -

    Maintenance & Repair

B-Series Pickup

Looking for a Used B-Series Pickup in your area?

CarGurus has 179 nationwide B-Series Pickup listings starting at $2,500.

ZIP:

Search Mazda B-Series Pickup Questions

Mazda B-Series Pickup Experts

#1 BoholMark
BoholMark
Reputation 390
#2 Tracy Hooks
Tracy Hooks
Reputation 240
#3 Michael Tutty
Michael Tutty
Reputation 220
View All

Related Models For Sale

Used Ford Ranger
185 Great Deals out of 5,522 listings starting at $1,000
Used Ford F-150
2,215 Great Deals out of 180,841 listings starting at $1,500
Used Chevrolet S-10
8 Great Deals out of 1,263 listings starting at $999
Used Toyota Pickup
114 listings
Used Dodge Dakota
130 Great Deals out of 3,697 listings starting at $1,650
Used Nissan Truck
96 listings starting at $2,800
Used Mazda MX-5 Miata
72 Great Deals out of 4,183 listings starting at $2,000
Used Dodge Ram 1500
410 Great Deals out of 10,661 listings starting at $1,000

Used Cars For Sale

2001 Mazda B-Series Pickup For Sale
36 listings starting at $2,995
2000 Mazda B-Series Pickup For Sale
21 listings starting at $2,500
1999 Mazda B-Series Pickup For Sale
29 listings starting at $3,995
1998 Mazda B-Series Pickup For Sale
22 listings starting at $5,490

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.