1989 Mazda b2200 rough ride

1989 MAZDA B2200
230,000 MILES • 4 CYL • 2WD • MANUAL
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LILMACK
  • MEMBER
  • 1 POST
i just changed plugs, wires, cap, rotor,air filter and oil. just got back from 200 mile trip with no issues. Drove into town the other day and filled up fuel, no prob. drove into town last night and it started spuddering goin up a usual hill, i was on way to parts store and a couple people suggests it could be a fuel pump going. it does not act as if it is not getting fuel. also it backfires, (pre tune up, as well as now) any opinions from you?. also is my fuel pump in gas tank or exterior?? thank you.

Brendan
Nov 22, 2009 at 5:02 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

I would be checking the fuel pressure & changing the fuel filter if this was not done with the tune, the fuel pump is an internal pump (in the tank) also re check timing and check for any vacuum leaks, run a scan to check for any unresolved fault codes as well, start here.

mark (mhpautos)
Nov 23, 2009 at 3:20 AM
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