1995 Mitsubishi Montero Mitsubitchi SR

LOOSECANNON

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1995 MITSUBISHI MONTERO
3.5L
6 CYL
4WD
AUTOMATIC
250,500 MILES

Was driving vehicle on interstate and it started sputtering real bad loosing power then just died. Finally got started. Started out badly sputtering holding gas to floor finally got RPM's up got vehicle off the interstate barely keep wanting to die and eventually did. Got vehicle towed home removed O2 sensor and thought this fixed problem but 4 miles into test drive died again. Checked fuel line by engine getting plenty to that point. Also backfiring a lot.

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KNOWLEDGE IS POWER

MECHANIC
1,136 POSTS

The backfiring indicates a lack of fuel or ignition at the wrong time. When did you last replace the timing belt?

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Saturday, March 8th, 2014 AT 4:10 PM

LOOSECANNON

MEMBER
2 POSTS

I bought vehicle a year ago and just contacted previous owner and learned it has not ever been replaced. Has 252,456 miles. Also what about crankshaft position sensor?

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Sunday, March 9th, 2014 AT 5:44 PM

KNOWLEDGE IS POWER

MECHANIC
1,136 POSTS

Timing belts are usually done every 60000 to 75000 miles. You're lucky it didn't break. The crank sensor is cheap and easy if you want to replace it but it almost never causes backfire. It just won't crank when those fail most of the time. Is service the timing belt and all the idler and tensioner pulleys associated with it as well as the water pump as it's driven by the belt also

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Monday, March 10th, 2014 AT 6:33 AM